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Finding the Fourth Proportional to 625,070.12, 862,600.91 and 338,590.21

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Solution

The fourth proportional to 625,070.12, 862,600.91 and 338,590.21 is: 467,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,070.12 : 862,600.91 = 338,590.21 : x
  2. Step 2: Convert to fraction form
    625,070.12/862,600.91 = 338,590.21/x
  3. Step 3: Cross multiply
    625,070.12x = 862,600.91 × 338,590.21
  4. Step 4: Simplify right side
    625,070.12x = 292,068,217,257.14
  5. Step 5: Solve for x
    x = 292,068,217,257.14/625,070.12
  6. Step 6: Final answer
    x = 467,256.73

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1.5x scale

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.