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Finding the Fourth Proportional to 491,819.80, 737,729.70 and 488,709.40

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Solution

The fourth proportional to 491,819.80, 737,729.70 and 488,709.40 is: 733,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,819.80 : 737,729.70 = 488,709.40 : x
  2. Step 2: Convert to fraction form
    491,819.80/737,729.70 = 488,709.40/x
  3. Step 3: Cross multiply
    491,819.80x = 737,729.70 × 488,709.40
  4. Step 4: Simplify right side
    491,819.80x = 360,535,439,049.18
  5. Step 5: Solve for x
    x = 360,535,439,049.18/491,819.80
  6. Step 6: Final answer
    x = 733,064.10

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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.