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Finding the Fourth Proportional to 636,716.80, 954,746.54 and 187,379.32

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Solution

The fourth proportional to 636,716.80, 954,746.54 and 187,379.32 is: 280,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,716.80 : 954,746.54 = 187,379.32 : x
  2. Step 2: Convert to fraction form
    636,716.80/954,746.54 = 187,379.32/x
  3. Step 3: Cross multiply
    636,716.80x = 954,746.54 × 187,379.32
  4. Step 4: Simplify right side
    636,716.80x = 178,899,756,500.66
  5. Step 5: Solve for x
    x = 178,899,756,500.66/636,716.80
  6. Step 6: Final answer
    x = 280,972.26

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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.