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Finding the Fourth Proportional to 625,156.88, 862,711.72 and 338,674.91

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Solution

The fourth proportional to 625,156.88, 862,711.72 and 338,674.91 is: 467,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,156.88 : 862,711.72 = 338,674.91 : x
  2. Step 2: Convert to fraction form
    625,156.88/862,711.72 = 338,674.91/x
  3. Step 3: Cross multiply
    625,156.88x = 862,711.72 × 338,674.91
  4. Step 4: Simplify right side
    625,156.88x = 292,178,812,433.57
  5. Step 5: Solve for x
    x = 292,178,812,433.57/625,156.88
  6. Step 6: Final answer
    x = 467,368.79

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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.