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Finding the Fourth Proportional to 384,310.20, 574,910.10 and 337,654.20

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Solution

The fourth proportional to 384,310.20, 574,910.10 and 337,654.20 is: 505,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,310.20 : 574,910.10 = 337,654.20 : x
  2. Step 2: Convert to fraction form
    384,310.20/574,910.10 = 337,654.20/x
  3. Step 3: Cross multiply
    384,310.20x = 574,910.10 × 337,654.20
  4. Step 4: Simplify right side
    384,310.20x = 194,120,809,887.42
  5. Step 5: Solve for x
    x = 194,120,809,887.42/384,310.20
  6. Step 6: Final answer
    x = 505,114.90

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1.5x scale

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.