Home / 1,028.43-1,541.97-480.87

Finding the Fourth Proportional to 1,028.43, 1,541.97 and 480.87

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Solution

The fourth proportional to 1,028.43, 1,541.97 and 480.87 is: 720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.43 : 1,541.97 = 480.87 : x
  2. Step 2: Convert to fraction form
    1,028.43/1,541.97 = 480.87/x
  3. Step 3: Cross multiply
    1,028.43x = 1,541.97 × 480.87
  4. Step 4: Simplify right side
    1,028.43x = 741,487.11
  5. Step 5: Solve for x
    x = 741,487.11/1,028.43
  6. Step 6: Final answer
    x = 720.99

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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.