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Finding the Fourth Proportional to 625,051.20, 862,508.88 and 349,357.44

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Solution

The fourth proportional to 625,051.20, 862,508.88 and 349,357.44 is: 482,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,051.20 : 862,508.88 = 349,357.44 : x
  2. Step 2: Convert to fraction form
    625,051.20/862,508.88 = 349,357.44/x
  3. Step 3: Cross multiply
    625,051.20x = 862,508.88 × 349,357.44
  4. Step 4: Simplify right side
    625,051.20x = 301,323,894,294.07
  5. Step 5: Solve for x
    x = 301,323,894,294.07/625,051.20
  6. Step 6: Final answer
    x = 482,078.74

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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.