Home / 481,027.52-721,549.56-143,989.76

Finding the Fourth Proportional to 481,027.52, 721,549.56 and 143,989.76

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Solution

The fourth proportional to 481,027.52, 721,549.56 and 143,989.76 is: 215,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,027.52 : 721,549.56 = 143,989.76 : x
  2. Step 2: Convert to fraction form
    481,027.52/721,549.56 = 143,989.76/x
  3. Step 3: Cross multiply
    481,027.52x = 721,549.56 × 143,989.76
  4. Step 4: Simplify right side
    481,027.52x = 103,895,747,972.51
  5. Step 5: Solve for x
    x = 103,895,747,972.51/481,027.52
  6. Step 6: Final answer
    x = 215,987.12

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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.