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Finding the Fourth Proportional to 625,203.34, 862,781.44 and 338,723.43

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Solution

The fourth proportional to 625,203.34, 862,781.44 and 338,723.43 is: 467,438.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,203.34 : 862,781.44 = 338,723.43 : x
  2. Step 2: Convert to fraction form
    625,203.34/862,781.44 = 338,723.43/x
  3. Step 3: Cross multiply
    625,203.34x = 862,781.44 × 338,723.43
  4. Step 4: Simplify right side
    625,203.34x = 292,244,288,697.14
  5. Step 5: Solve for x
    x = 292,244,288,697.14/625,203.34
  6. Step 6: Final answer
    x = 467,438.78

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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.