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Finding the Fourth Proportional to 625,088.10, 862,621.53 and 338,608.11

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Solution

The fourth proportional to 625,088.10, 862,621.53 and 338,608.11 is: 467,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,088.10 : 862,621.53 = 338,608.11 : x
  2. Step 2: Convert to fraction form
    625,088.10/862,621.53 = 338,608.11/x
  3. Step 3: Cross multiply
    625,088.10x = 862,621.53 × 338,608.11
  4. Step 4: Simplify right side
    625,088.10x = 292,090,645,918.61
  5. Step 5: Solve for x
    x = 292,090,645,918.61/625,088.10
  6. Step 6: Final answer
    x = 467,279.17

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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.