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Finding the Fourth Proportional to 516,294.92, 712,200.12 and 479,761.49

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Solution

The fourth proportional to 516,294.92, 712,200.12 and 479,761.49 is: 661,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,294.92 : 712,200.12 = 479,761.49 : x
  2. Step 2: Convert to fraction form
    516,294.92/712,200.12 = 479,761.49/x
  3. Step 3: Cross multiply
    516,294.92x = 712,200.12 × 479,761.49
  4. Step 4: Simplify right side
    516,294.92x = 341,686,190,749.38
  5. Step 5: Solve for x
    x = 341,686,190,749.38/516,294.92
  6. Step 6: Final answer
    x = 661,804.29

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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.