Home / 726,471.74-1,002,505.77-399,754.19

Finding the Fourth Proportional to 726,471.74, 1,002,505.77 and 399,754.19

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Solution

The fourth proportional to 726,471.74, 1,002,505.77 and 399,754.19 is: 551,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,471.74 : 1,002,505.77 = 399,754.19 : x
  2. Step 2: Convert to fraction form
    726,471.74/1,002,505.77 = 399,754.19/x
  3. Step 3: Cross multiply
    726,471.74x = 1,002,505.77 × 399,754.19
  4. Step 4: Simplify right side
    726,471.74x = 400,755,877,044.15
  5. Step 5: Solve for x
    x = 400,755,877,044.15/726,471.74
  6. Step 6: Final answer
    x = 551,646.90

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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.