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Finding the Fourth Proportional to 588.96, 879.12 and 515.88

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Solution

The fourth proportional to 588.96, 879.12 and 515.88 is: 770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.96 : 879.12 = 515.88 : x
  2. Step 2: Convert to fraction form
    588.96/879.12 = 515.88/x
  3. Step 3: Cross multiply
    588.96x = 879.12 × 515.88
  4. Step 4: Simplify right side
    588.96x = 453,520.43
  5. Step 5: Solve for x
    x = 453,520.43/588.96
  6. Step 6: Final answer
    x = 770.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.