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Finding the Fourth Proportional to 801,385.92, 1,202,117.76 and 660,888

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Solution

The fourth proportional to 801,385.92, 1,202,117.76 and 660,888 is: 991,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,385.92 : 1,202,117.76 = 660,888 : x
  2. Step 2: Convert to fraction form
    801,385.92/1,202,117.76 = 660,888/x
  3. Step 3: Cross multiply
    801,385.92x = 1,202,117.76 × 660,888
  4. Step 4: Simplify right side
    801,385.92x = 794,465,202,170.88
  5. Step 5: Solve for x
    x = 794,465,202,170.88/801,385.92
  6. Step 6: Final answer
    x = 991,364.06

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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.