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Finding the Fourth Proportional to 481,236.40, 721,854.60 and 449,743.60

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Solution

The fourth proportional to 481,236.40, 721,854.60 and 449,743.60 is: 674,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,236.40 : 721,854.60 = 449,743.60 : x
  2. Step 2: Convert to fraction form
    481,236.40/721,854.60 = 449,743.60/x
  3. Step 3: Cross multiply
    481,236.40x = 721,854.60 × 449,743.60
  4. Step 4: Simplify right side
    481,236.40x = 324,649,486,480.56
  5. Step 5: Solve for x
    x = 324,649,486,480.56/481,236.40
  6. Step 6: Final answer
    x = 674,615.40

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Similar ratio
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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.