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Finding the Fourth Proportional to 625,114.56, 862,658.51 and 338,635.79

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Solution

The fourth proportional to 625,114.56, 862,658.51 and 338,635.79 is: 467,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,114.56 : 862,658.51 = 338,635.79 : x
  2. Step 2: Convert to fraction form
    625,114.56/862,658.51 = 338,635.79/x
  3. Step 3: Cross multiply
    625,114.56x = 862,658.51 × 338,635.79
  4. Step 4: Simplify right side
    625,114.56x = 292,127,040,027.60
  5. Step 5: Solve for x
    x = 292,127,040,027.60/625,114.56
  6. Step 6: Final answer
    x = 467,317.61

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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.