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Finding the Fourth Proportional to 499,489.80, 749,234.70 and 496,379.40

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Solution

The fourth proportional to 499,489.80, 749,234.70 and 496,379.40 is: 744,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,489.80 : 749,234.70 = 496,379.40 : x
  2. Step 2: Convert to fraction form
    499,489.80/749,234.70 = 496,379.40/x
  3. Step 3: Cross multiply
    499,489.80x = 749,234.70 × 496,379.40
  4. Step 4: Simplify right side
    499,489.80x = 371,904,670,845.18
  5. Step 5: Solve for x
    x = 371,904,670,845.18/499,489.80
  6. Step 6: Final answer
    x = 744,569.10

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Similar ratio
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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.