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Finding the Fourth Proportional to 491,730.60, 737,620.20 and 255,534.60

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Solution

The fourth proportional to 491,730.60, 737,620.20 and 255,534.60 is: 383,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,730.60 : 737,620.20 = 255,534.60 : x
  2. Step 2: Convert to fraction form
    491,730.60/737,620.20 = 255,534.60/x
  3. Step 3: Cross multiply
    491,730.60x = 737,620.20 × 255,534.60
  4. Step 4: Simplify right side
    491,730.60x = 188,487,482,758.92
  5. Step 5: Solve for x
    x = 188,487,482,758.92/491,730.60
  6. Step 6: Final answer
    x = 383,314.53

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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.