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Finding the Fourth Proportional to 625,088.29, 862,621.79 and 338,608.30

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Solution

The fourth proportional to 625,088.29, 862,621.79 and 338,608.30 is: 467,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,088.29 : 862,621.79 = 338,608.30 : x
  2. Step 2: Convert to fraction form
    625,088.29/862,621.79 = 338,608.30/x
  3. Step 3: Cross multiply
    625,088.29x = 862,621.79 × 338,608.30
  4. Step 4: Simplify right side
    625,088.29x = 292,090,895,275.04
  5. Step 5: Solve for x
    x = 292,090,895,275.04/625,088.29
  6. Step 6: Final answer
    x = 467,279.42

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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.