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Finding the Fourth Proportional to 625,070.42, 862,601.32 and 338,590.50

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Solution

The fourth proportional to 625,070.42, 862,601.32 and 338,590.50 is: 467,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,070.42 : 862,601.32 = 338,590.50 : x
  2. Step 2: Convert to fraction form
    625,070.42/862,601.32 = 338,590.50/x
  3. Step 3: Cross multiply
    625,070.42x = 862,601.32 × 338,590.50
  4. Step 4: Simplify right side
    625,070.42x = 292,068,613,327.79
  5. Step 5: Solve for x
    x = 292,068,613,327.79/625,070.42
  6. Step 6: Final answer
    x = 467,257.14

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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.