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Finding the Fourth Proportional to 868,729.70, 1,301,654.36 and 614,751.77

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Solution

The fourth proportional to 868,729.70, 1,301,654.36 and 614,751.77 is: 921,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,729.70 : 1,301,654.36 = 614,751.77 : x
  2. Step 2: Convert to fraction form
    868,729.70/1,301,654.36 = 614,751.77/x
  3. Step 3: Cross multiply
    868,729.70x = 1,301,654.36 × 614,751.77
  4. Step 4: Simplify right side
    868,729.70x = 800,194,312,156.19
  5. Step 5: Solve for x
    x = 800,194,312,156.19/868,729.70
  6. Step 6: Final answer
    x = 921,108.51

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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.