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Finding the Fourth Proportional to 737.15, 1,104.30 and 659.79

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Solution

The fourth proportional to 737.15, 1,104.30 and 659.79 is: 988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.15 : 1,104.30 = 659.79 : x
  2. Step 2: Convert to fraction form
    737.15/1,104.30 = 659.79/x
  3. Step 3: Cross multiply
    737.15x = 1,104.30 × 659.79
  4. Step 4: Simplify right side
    737.15x = 728,606.10
  5. Step 5: Solve for x
    x = 728,606.10/737.15
  6. Step 6: Final answer
    x = 988.42

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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.