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Finding the Fourth Proportional to 903.06, 1,352.97 and 658.44

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Solution

The fourth proportional to 903.06, 1,352.97 and 658.44 is: 986.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.06 : 1,352.97 = 658.44 : x
  2. Step 2: Convert to fraction form
    903.06/1,352.97 = 658.44/x
  3. Step 3: Cross multiply
    903.06x = 1,352.97 × 658.44
  4. Step 4: Simplify right side
    903.06x = 890,849.57
  5. Step 5: Solve for x
    x = 890,849.57/903.06
  6. Step 6: Final answer
    x = 986.48

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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.