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Finding the Fourth Proportional to 799.92, 1,103.67 and 484.92

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Solution

The fourth proportional to 799.92, 1,103.67 and 484.92 is: 669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.92 : 1,103.67 = 484.92 : x
  2. Step 2: Convert to fraction form
    799.92/1,103.67 = 484.92/x
  3. Step 3: Cross multiply
    799.92x = 1,103.67 × 484.92
  4. Step 4: Simplify right side
    799.92x = 535,191.66
  5. Step 5: Solve for x
    x = 535,191.66/799.92
  6. Step 6: Final answer
    x = 669.06

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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.