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Finding the Fourth Proportional to 382,819.70, 574,229.55 and 323,770.70

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Solution

The fourth proportional to 382,819.70, 574,229.55 and 323,770.70 is: 485,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,819.70 : 574,229.55 = 323,770.70 : x
  2. Step 2: Convert to fraction form
    382,819.70/574,229.55 = 323,770.70/x
  3. Step 3: Cross multiply
    382,819.70x = 574,229.55 × 323,770.70
  4. Step 4: Simplify right side
    382,819.70x = 185,918,703,364.19
  5. Step 5: Solve for x
    x = 185,918,703,364.19/382,819.70
  6. Step 6: Final answer
    x = 485,656.05

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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.