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Finding the Fourth Proportional to 591.68, 886.44 and 488.72

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Solution

The fourth proportional to 591.68, 886.44 and 488.72 is: 732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.68 : 886.44 = 488.72 : x
  2. Step 2: Convert to fraction form
    591.68/886.44 = 488.72/x
  3. Step 3: Cross multiply
    591.68x = 886.44 × 488.72
  4. Step 4: Simplify right side
    591.68x = 433,220.96
  5. Step 5: Solve for x
    x = 433,220.96/591.68
  6. Step 6: Final answer
    x = 732.19

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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.