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Finding the Fourth Proportional to 636,974.52, 955,609.40 and 216,250.40

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Solution

The fourth proportional to 636,974.52, 955,609.40 and 216,250.40 is: 324,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,974.52 : 955,609.40 = 216,250.40 : x
  2. Step 2: Convert to fraction form
    636,974.52/955,609.40 = 216,250.40/x
  3. Step 3: Cross multiply
    636,974.52x = 955,609.40 × 216,250.40
  4. Step 4: Simplify right side
    636,974.52x = 206,650,914,993.76
  5. Step 5: Solve for x
    x = 206,650,914,993.76/636,974.52
  6. Step 6: Final answer
    x = 324,425.72

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1.5x scale

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.