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Finding the Fourth Proportional to 664,391.52, 997,026.98 and 365,080.53

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Solution

The fourth proportional to 664,391.52, 997,026.98 and 365,080.53 is: 547,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,391.52 : 997,026.98 = 365,080.53 : x
  2. Step 2: Convert to fraction form
    664,391.52/997,026.98 = 365,080.53/x
  3. Step 3: Cross multiply
    664,391.52x = 997,026.98 × 365,080.53
  4. Step 4: Simplify right side
    664,391.52x = 363,995,138,282.70
  5. Step 5: Solve for x
    x = 363,995,138,282.70/664,391.52
  6. Step 6: Final answer
    x = 547,862.41

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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.