Home / 481,049.28-721,616.40-126,061.92

Finding the Fourth Proportional to 481,049.28, 721,616.40 and 126,061.92

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Solution

The fourth proportional to 481,049.28, 721,616.40 and 126,061.92 is: 189,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,049.28 : 721,616.40 = 126,061.92 : x
  2. Step 2: Convert to fraction form
    481,049.28/721,616.40 = 126,061.92/x
  3. Step 3: Cross multiply
    481,049.28x = 721,616.40 × 126,061.92
  4. Step 4: Simplify right side
    481,049.28x = 90,968,348,887.49
  5. Step 5: Solve for x
    x = 90,968,348,887.49/481,049.28
  6. Step 6: Final answer
    x = 189,104.01

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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.