Home / 498,276.40-747,414.60-459,785.20

Finding the Fourth Proportional to 498,276.40, 747,414.60 and 459,785.20

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Solution

The fourth proportional to 498,276.40, 747,414.60 and 459,785.20 is: 689,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,276.40 : 747,414.60 = 459,785.20 : x
  2. Step 2: Convert to fraction form
    498,276.40/747,414.60 = 459,785.20/x
  3. Step 3: Cross multiply
    498,276.40x = 747,414.60 × 459,785.20
  4. Step 4: Simplify right side
    498,276.40x = 343,650,171,343.92
  5. Step 5: Solve for x
    x = 343,650,171,343.92/498,276.40
  6. Step 6: Final answer
    x = 689,677.80

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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.