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Finding the Fourth Proportional to 658,677.38, 985,309.52 and 525,817.12

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Solution

The fourth proportional to 658,677.38, 985,309.52 and 525,817.12 is: 786,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,677.38 : 985,309.52 = 525,817.12 : x
  2. Step 2: Convert to fraction form
    658,677.38/985,309.52 = 525,817.12/x
  3. Step 3: Cross multiply
    658,677.38x = 985,309.52 × 525,817.12
  4. Step 4: Simplify right side
    658,677.38x = 518,092,614,114.98
  5. Step 5: Solve for x
    x = 518,092,614,114.98/658,677.38
  6. Step 6: Final answer
    x = 786,565.06

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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.