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Finding the Fourth Proportional to 625,315.10, 862,937.84 and 338,835.72

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Solution

The fourth proportional to 625,315.10, 862,937.84 and 338,835.72 is: 467,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,315.10 : 862,937.84 = 338,835.72 : x
  2. Step 2: Convert to fraction form
    625,315.10/862,937.84 = 338,835.72/x
  3. Step 3: Cross multiply
    625,315.10x = 862,937.84 × 338,835.72
  4. Step 4: Simplify right side
    625,315.10x = 292,394,165,178.73
  5. Step 5: Solve for x
    x = 292,394,165,178.73/625,315.10
  6. Step 6: Final answer
    x = 467,594.92

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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.