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Finding the Fourth Proportional to 589.12, 883.92 and 481.12

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Solution

The fourth proportional to 589.12, 883.92 and 481.12 is: 721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.12 : 883.92 = 481.12 : x
  2. Step 2: Convert to fraction form
    589.12/883.92 = 481.12/x
  3. Step 3: Cross multiply
    589.12x = 883.92 × 481.12
  4. Step 4: Simplify right side
    589.12x = 425,271.59
  5. Step 5: Solve for x
    x = 425,271.59/589.12
  6. Step 6: Final answer
    x = 721.88

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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.