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Finding the Fourth Proportional to 581.64, 876.46 and 481.18

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Solution

The fourth proportional to 581.64, 876.46 and 481.18 is: 725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.64 : 876.46 = 481.18 : x
  2. Step 2: Convert to fraction form
    581.64/876.46 = 481.18/x
  3. Step 3: Cross multiply
    581.64x = 876.46 × 481.18
  4. Step 4: Simplify right side
    581.64x = 421,732.62
  5. Step 5: Solve for x
    x = 421,732.62/581.64
  6. Step 6: Final answer
    x = 725.08

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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.