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Finding the Fourth Proportional to 615,691.80, 923,630.04 and 216,262.17

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Solution

The fourth proportional to 615,691.80, 923,630.04 and 216,262.17 is: 324,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,691.80 : 923,630.04 = 216,262.17 : x
  2. Step 2: Convert to fraction form
    615,691.80/923,630.04 = 216,262.17/x
  3. Step 3: Cross multiply
    615,691.80x = 923,630.04 × 216,262.17
  4. Step 4: Simplify right side
    615,691.80x = 199,746,236,727.59
  5. Step 5: Solve for x
    x = 199,746,236,727.59/615,691.80
  6. Step 6: Final answer
    x = 324,425.69

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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.