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Finding the Fourth Proportional to 499,824.80, 749,737.20 and 451,613.60

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Solution

The fourth proportional to 499,824.80, 749,737.20 and 451,613.60 is: 677,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,824.80 : 749,737.20 = 451,613.60 : x
  2. Step 2: Convert to fraction form
    499,824.80/749,737.20 = 451,613.60/x
  3. Step 3: Cross multiply
    499,824.80x = 749,737.20 × 451,613.60
  4. Step 4: Simplify right side
    499,824.80x = 338,591,515,945.92
  5. Step 5: Solve for x
    x = 338,591,515,945.92/499,824.80
  6. Step 6: Final answer
    x = 677,420.40

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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.