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Finding the Fourth Proportional to 539,398.40, 807,254.40 and 473,043.20

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Solution

The fourth proportional to 539,398.40, 807,254.40 and 473,043.20 is: 707,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,398.40 : 807,254.40 = 473,043.20 : x
  2. Step 2: Convert to fraction form
    539,398.40/807,254.40 = 473,043.20/x
  3. Step 3: Cross multiply
    539,398.40x = 807,254.40 × 473,043.20
  4. Step 4: Simplify right side
    539,398.40x = 381,866,204,590.08
  5. Step 5: Solve for x
    x = 381,866,204,590.08/539,398.40
  6. Step 6: Final answer
    x = 707,948.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.