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Finding the Fourth Proportional to 996.44, 1,375.08 and 576.79

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Solution

The fourth proportional to 996.44, 1,375.08 and 576.79 is: 795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.44 : 1,375.08 = 576.79 : x
  2. Step 2: Convert to fraction form
    996.44/1,375.08 = 576.79/x
  3. Step 3: Cross multiply
    996.44x = 1,375.08 × 576.79
  4. Step 4: Simplify right side
    996.44x = 793,125.52
  5. Step 5: Solve for x
    x = 793,125.52/996.44
  6. Step 6: Final answer
    x = 795.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.