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Finding the Fourth Proportional to 800,348.55, 1,200,524.85 and 327,033.90

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Solution

The fourth proportional to 800,348.55, 1,200,524.85 and 327,033.90 is: 490,551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,348.55 : 1,200,524.85 = 327,033.90 : x
  2. Step 2: Convert to fraction form
    800,348.55/1,200,524.85 = 327,033.90/x
  3. Step 3: Cross multiply
    800,348.55x = 1,200,524.85 × 327,033.90
  4. Step 4: Simplify right side
    800,348.55x = 392,612,323,742.42
  5. Step 5: Solve for x
    x = 392,612,323,742.42/800,348.55
  6. Step 6: Final answer
    x = 490,551.68

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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.