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Finding the Fourth Proportional to 656,469.20, 984,703.80 and 614,478.80

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Solution

The fourth proportional to 656,469.20, 984,703.80 and 614,478.80 is: 921,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,469.20 : 984,703.80 = 614,478.80 : x
  2. Step 2: Convert to fraction form
    656,469.20/984,703.80 = 614,478.80/x
  3. Step 3: Cross multiply
    656,469.20x = 984,703.80 × 614,478.80
  4. Step 4: Simplify right side
    656,469.20x = 605,079,609,379.44
  5. Step 5: Solve for x
    x = 605,079,609,379.44/656,469.20
  6. Step 6: Final answer
    x = 921,718.20

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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.