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Finding the Fourth Proportional to 625,337.20, 938,443.20 and 270,605.80

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Solution

The fourth proportional to 625,337.20, 938,443.20 and 270,605.80 is: 406,097.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,337.20 : 938,443.20 = 270,605.80 : x
  2. Step 2: Convert to fraction form
    625,337.20/938,443.20 = 270,605.80/x
  3. Step 3: Cross multiply
    625,337.20x = 938,443.20 × 270,605.80
  4. Step 4: Simplify right side
    625,337.20x = 253,948,172,890.56
  5. Step 5: Solve for x
    x = 253,948,172,890.56/625,337.20
  6. Step 6: Final answer
    x = 406,097.98

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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.