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Finding the Fourth Proportional to 498,755.60, 748,133.40 and 299,301.20

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Solution

The fourth proportional to 498,755.60, 748,133.40 and 299,301.20 is: 448,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,755.60 : 748,133.40 = 299,301.20 : x
  2. Step 2: Convert to fraction form
    498,755.60/748,133.40 = 299,301.20/x
  3. Step 3: Cross multiply
    498,755.60x = 748,133.40 × 299,301.20
  4. Step 4: Simplify right side
    498,755.60x = 223,917,224,380.08
  5. Step 5: Solve for x
    x = 223,917,224,380.08/498,755.60
  6. Step 6: Final answer
    x = 448,951.80

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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.