Home / 821,239.52-1,234,046.28-442,451.12

Finding the Fourth Proportional to 821,239.52, 1,234,046.28 and 442,451.12

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Solution

The fourth proportional to 821,239.52, 1,234,046.28 and 442,451.12 is: 664,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,239.52 : 1,234,046.28 = 442,451.12 : x
  2. Step 2: Convert to fraction form
    821,239.52/1,234,046.28 = 442,451.12/x
  3. Step 3: Cross multiply
    821,239.52x = 1,234,046.28 × 442,451.12
  4. Step 4: Simplify right side
    821,239.52x = 546,005,158,717.83
  5. Step 5: Solve for x
    x = 546,005,158,717.83/821,239.52
  6. Step 6: Final answer
    x = 664,854.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.