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Finding the Fourth Proportional to 496,243.40, 744,365.10 and 259,658.60

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Solution

The fourth proportional to 496,243.40, 744,365.10 and 259,658.60 is: 389,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,243.40 : 744,365.10 = 259,658.60 : x
  2. Step 2: Convert to fraction form
    496,243.40/744,365.10 = 259,658.60/x
  3. Step 3: Cross multiply
    496,243.40x = 744,365.10 × 259,658.60
  4. Step 4: Simplify right side
    496,243.40x = 193,280,799,754.86
  5. Step 5: Solve for x
    x = 193,280,799,754.86/496,243.40
  6. Step 6: Final answer
    x = 389,487.90

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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.