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Finding the Fourth Proportional to 588.40, 883.28 and 451.24

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Solution

The fourth proportional to 588.40, 883.28 and 451.24 is: 677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.40 : 883.28 = 451.24 : x
  2. Step 2: Convert to fraction form
    588.40/883.28 = 451.24/x
  3. Step 3: Cross multiply
    588.40x = 883.28 × 451.24
  4. Step 4: Simplify right side
    588.40x = 398,571.27
  5. Step 5: Solve for x
    x = 398,571.27/588.40
  6. Step 6: Final answer
    x = 677.38

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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.