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Finding the Fourth Proportional to 801,389.92, 1,202,123.76 and 660,892

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Solution

The fourth proportional to 801,389.92, 1,202,123.76 and 660,892 is: 991,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,389.92 : 1,202,123.76 = 660,892 : x
  2. Step 2: Convert to fraction form
    801,389.92/1,202,123.76 = 660,892/x
  3. Step 3: Cross multiply
    801,389.92x = 1,202,123.76 × 660,892
  4. Step 4: Simplify right side
    801,389.92x = 794,473,975,993.92
  5. Step 5: Solve for x
    x = 794,473,975,993.92/801,389.92
  6. Step 6: Final answer
    x = 991,370.06

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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.