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Finding the Fourth Proportional to 636,717.30, 954,747.28 and 187,379.83

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Solution

The fourth proportional to 636,717.30, 954,747.28 and 187,379.83 is: 280,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,717.30 : 954,747.28 = 187,379.83 : x
  2. Step 2: Convert to fraction form
    636,717.30/954,747.28 = 187,379.83/x
  3. Step 3: Cross multiply
    636,717.30x = 954,747.28 × 187,379.83
  4. Step 4: Simplify right side
    636,717.30x = 178,900,383,019.36
  5. Step 5: Solve for x
    x = 178,900,383,019.36/636,717.30
  6. Step 6: Final answer
    x = 280,973.02

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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.