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Finding the Fourth Proportional to 588.96, 881.28 and 396

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Solution

The fourth proportional to 588.96, 881.28 and 396 is: 592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.96 : 881.28 = 396 : x
  2. Step 2: Convert to fraction form
    588.96/881.28 = 396/x
  3. Step 3: Cross multiply
    588.96x = 881.28 × 396
  4. Step 4: Simplify right side
    588.96x = 348,986.88
  5. Step 5: Solve for x
    x = 348,986.88/588.96
  6. Step 6: Final answer
    x = 592.55

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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.