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Finding the Fourth Proportional to 499,403.60, 749,105.40 and 473,742.80

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Solution

The fourth proportional to 499,403.60, 749,105.40 and 473,742.80 is: 710,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,403.60 : 749,105.40 = 473,742.80 : x
  2. Step 2: Convert to fraction form
    499,403.60/749,105.40 = 473,742.80/x
  3. Step 3: Cross multiply
    499,403.60x = 749,105.40 × 473,742.80
  4. Step 4: Simplify right side
    499,403.60x = 354,883,289,691.12
  5. Step 5: Solve for x
    x = 354,883,289,691.12/499,403.60
  6. Step 6: Final answer
    x = 710,614.20

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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.