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Finding the Fourth Proportional to 581.03, 875.52 and 480.57

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Solution

The fourth proportional to 581.03, 875.52 and 480.57 is: 724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.03 : 875.52 = 480.57 : x
  2. Step 2: Convert to fraction form
    581.03/875.52 = 480.57/x
  3. Step 3: Cross multiply
    581.03x = 875.52 × 480.57
  4. Step 4: Simplify right side
    581.03x = 420,745.36
  5. Step 5: Solve for x
    x = 420,745.36/581.03
  6. Step 6: Final answer
    x = 724.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.