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Finding the Fourth Proportional to 636,609.44, 954,976.48 and 231,911.60

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Solution

The fourth proportional to 636,609.44, 954,976.48 and 231,911.60 is: 347,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,609.44 : 954,976.48 = 231,911.60 : x
  2. Step 2: Convert to fraction form
    636,609.44/954,976.48 = 231,911.60/x
  3. Step 3: Cross multiply
    636,609.44x = 954,976.48 × 231,911.60
  4. Step 4: Simplify right side
    636,609.44x = 221,470,123,439.17
  5. Step 5: Solve for x
    x = 221,470,123,439.17/636,609.44
  6. Step 6: Final answer
    x = 347,890.10

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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.