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Finding the Fourth Proportional to 799.44, 1,104.40 and 633.12

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Solution

The fourth proportional to 799.44, 1,104.40 and 633.12 is: 874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.44 : 1,104.40 = 633.12 : x
  2. Step 2: Convert to fraction form
    799.44/1,104.40 = 633.12/x
  3. Step 3: Cross multiply
    799.44x = 1,104.40 × 633.12
  4. Step 4: Simplify right side
    799.44x = 699,217.73
  5. Step 5: Solve for x
    x = 699,217.73/799.44
  6. Step 6: Final answer
    x = 874.63

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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.