The most common are: 1. ... Representative Fraction (R.F.) (It could also be shown as l/50 000, but this form is not as common.) This type of scale representation visually looks very similar to representative fraction (RF). Calculate ground distance given map scale and map distance. The RF is always written with the map distance as … carries no units (inches, centimeters, etc. An RF is a ratio and is shown as follows: 1:50 000. Representative Fraction (RF) Scale The third method for showing scale is the representative fraction scale. Scale bars are graphical representations of distance on a map. C. Representative Fraction (RF) or Natural Scale: 1:1,000,000 (this is the same as 1/1,000,000) The RF says that 1 of any measurement on the map equals 1 million of the same measurement on the original surface; for the example above 1-foot equals 1 million feet or 1 cm. ), also known as scale ratios, relate the size … - Scale is a fraction, expressed in 3 ways: - Representative Fraction (RF), e.g. The scale of a chart is the ratio of a given distance on the chart to the actual distance which it represents on the earth. Representative fractions (R.F. It can be used in all countries and also termed as International Scale. The advantage of this distinction between varying scale on the super map and a constant RF is that for the former we can analyse scale variation around a value of unity. It can be written in three ways, the verbal scale, the graphic scale, and the representative fraction (RF) or fractional scale. Verbal and RF scales do not. For example, the graphic scale might show a scale marked of in 1 cm units but labels them each as 10 km, 20 km etc. Answer: For graphical scale, to know the length of the line we need to make following calculations. Here such a scale means that one unit of measurment on the map is equal to 50000 of the same unit on the ground. scale is a ratio, or fraction, that expresses the mathematical relationship between MAP and LAND, such as 1 : 24,000. which means "1 map unit is equivalent to 24,000 land units." Its advantage is that it has universal application. However, representative fraction avoids the use of units in detailing the scale of a map. These formats are the representative fraction, the verbal statement, the graphic or bar scale, and the area scale. In representative fraction (RF), the scale on the map is expressed in the numerical fraction. Eg: 1: 50000 means 1 cm on the map is 50000 cms on actual ground. It can be expressed as 1/100,000 or 1:100,000. In this example, one centimeter on the map equals 100,000 centimeters (1 kilometer) on the earth. For example, if we say that the scale of a map is 1 cm : 1 km, it would be understood by only that person who is familiar with the metric system of measurement. equals 1 million cm. For example, a map where one unit (centimeter, meter, inch, kilometer, etc.) The scale ratio is always written as one unit on the photo or map to the corresponding number of units on the ground. By convention, the proportion is expressed as a "representative fraction" in which map distance (D m) is reduced to 1. on the illustration represents 1,000,000 of these same units on the actual surface of the Earth would have a representative fraction of 1/1,000,000 (fraction) or 1:1,000,000 (ratio). Example sentences with "representative fraction", translation memory. This fraction is called the representative fraction or simply "RF" in short. 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