Home / 868,139.59-1,198,082.42-486,163.03

Finding the Fourth Proportional to 868,139.59, 1,198,082.42 and 486,163.03

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Solution

The fourth proportional to 868,139.59, 1,198,082.42 and 486,163.03 is: 670,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,139.59 : 1,198,082.42 = 486,163.03 : x
  2. Step 2: Convert to fraction form
    868,139.59/1,198,082.42 = 486,163.03/x
  3. Step 3: Cross multiply
    868,139.59x = 1,198,082.42 × 486,163.03
  4. Step 4: Simplify right side
    868,139.59x = 582,463,376,773.09
  5. Step 5: Solve for x
    x = 582,463,376,773.09/868,139.59
  6. Step 6: Final answer
    x = 670,932.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.