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Finding the Fourth Proportional to 587,489.75, 810,728.96 and 329,365.43

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Solution

The fourth proportional to 587,489.75, 810,728.96 and 329,365.43 is: 454,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,489.75 : 810,728.96 = 329,365.43 : x
  2. Step 2: Convert to fraction form
    587,489.75/810,728.96 = 329,365.43/x
  3. Step 3: Cross multiply
    587,489.75x = 810,728.96 × 329,365.43
  4. Step 4: Simplify right side
    587,489.75x = 267,026,092,523.85
  5. Step 5: Solve for x
    x = 267,026,092,523.85/587,489.75
  6. Step 6: Final answer
    x = 454,520.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.