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Finding the Fourth Proportional to 803,679.52, 1,109,079.12 and 441,105.76

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Solution

The fourth proportional to 803,679.52, 1,109,079.12 and 441,105.76 is: 608,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,679.52 : 1,109,079.12 = 441,105.76 : x
  2. Step 2: Convert to fraction form
    803,679.52/1,109,079.12 = 441,105.76/x
  3. Step 3: Cross multiply
    803,679.52x = 1,109,079.12 × 441,105.76
  4. Step 4: Simplify right side
    803,679.52x = 489,221,188,127.73
  5. Step 5: Solve for x
    x = 489,221,188,127.73/803,679.52
  6. Step 6: Final answer
    x = 608,726.71

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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.