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Finding the Fourth Proportional to 496,732.80, 745,099.20 and 378,634.80

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Solution

The fourth proportional to 496,732.80, 745,099.20 and 378,634.80 is: 567,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,732.80 : 745,099.20 = 378,634.80 : x
  2. Step 2: Convert to fraction form
    496,732.80/745,099.20 = 378,634.80/x
  3. Step 3: Cross multiply
    496,732.80x = 745,099.20 × 378,634.80
  4. Step 4: Simplify right side
    496,732.80x = 282,120,486,572.16
  5. Step 5: Solve for x
    x = 282,120,486,572.16/496,732.80
  6. Step 6: Final answer
    x = 567,952.20

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Similar ratio
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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.