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Finding the Fourth Proportional to 588.78, 881.96 and 458.64

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Solution

The fourth proportional to 588.78, 881.96 and 458.64 is: 687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.78 : 881.96 = 458.64 : x
  2. Step 2: Convert to fraction form
    588.78/881.96 = 458.64/x
  3. Step 3: Cross multiply
    588.78x = 881.96 × 458.64
  4. Step 4: Simplify right side
    588.78x = 404,499.84
  5. Step 5: Solve for x
    x = 404,499.84/588.78
  6. Step 6: Final answer
    x = 687.01

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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.