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Finding the Fourth Proportional to 636,717.80, 954,748.04 and 187,380.32

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Solution

The fourth proportional to 636,717.80, 954,748.04 and 187,380.32 is: 280,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,717.80 : 954,748.04 = 187,380.32 : x
  2. Step 2: Convert to fraction form
    636,717.80/954,748.04 = 187,380.32/x
  3. Step 3: Cross multiply
    636,717.80x = 954,748.04 × 187,380.32
  4. Step 4: Simplify right side
    636,717.80x = 178,900,994,704.54
  5. Step 5: Solve for x
    x = 178,900,994,704.54/636,717.80
  6. Step 6: Final answer
    x = 280,973.76

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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.