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Finding the Fourth Proportional to 488,734.60, 733,101.90 and 330,104.20

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Solution

The fourth proportional to 488,734.60, 733,101.90 and 330,104.20 is: 495,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,734.60 : 733,101.90 = 330,104.20 : x
  2. Step 2: Convert to fraction form
    488,734.60/733,101.90 = 330,104.20/x
  3. Step 3: Cross multiply
    488,734.60x = 733,101.90 × 330,104.20
  4. Step 4: Simplify right side
    488,734.60x = 242,000,016,217.98
  5. Step 5: Solve for x
    x = 242,000,016,217.98/488,734.60
  6. Step 6: Final answer
    x = 495,156.30

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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.