Home / 481,028.52-721,551.06-143,990.76

Finding the Fourth Proportional to 481,028.52, 721,551.06 and 143,990.76

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Solution

The fourth proportional to 481,028.52, 721,551.06 and 143,990.76 is: 215,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,028.52 : 721,551.06 = 143,990.76 : x
  2. Step 2: Convert to fraction form
    481,028.52/721,551.06 = 143,990.76/x
  3. Step 3: Cross multiply
    481,028.52x = 721,551.06 × 143,990.76
  4. Step 4: Simplify right side
    481,028.52x = 103,896,685,508.21
  5. Step 5: Solve for x
    x = 103,896,685,508.21/481,028.52
  6. Step 6: Final answer
    x = 215,988.62

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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.