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Finding the Fourth Proportional to 625,274.20, 862,879.17 and 338,794.21

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Solution

The fourth proportional to 625,274.20, 862,879.17 and 338,794.21 is: 467,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,274.20 : 862,879.17 = 338,794.21 : x
  2. Step 2: Convert to fraction form
    625,274.20/862,879.17 = 338,794.21/x
  3. Step 3: Cross multiply
    625,274.20x = 862,879.17 × 338,794.21
  4. Step 4: Simplify right side
    625,274.20x = 292,338,466,725.61
  5. Step 5: Solve for x
    x = 292,338,466,725.61/625,274.20
  6. Step 6: Final answer
    x = 467,536.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.