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Finding the Fourth Proportional to 576.48, 864 and 383.52

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Solution

The fourth proportional to 576.48, 864 and 383.52 is: 574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.48 : 864 = 383.52 : x
  2. Step 2: Convert to fraction form
    576.48/864 = 383.52/x
  3. Step 3: Cross multiply
    576.48x = 864 × 383.52
  4. Step 4: Simplify right side
    576.48x = 331,361.28
  5. Step 5: Solve for x
    x = 331,361.28/576.48
  6. Step 6: Final answer
    x = 574.80

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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.