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Finding the Fourth Proportional to 815.52, 1,223.31 and 596.37

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Solution

The fourth proportional to 815.52, 1,223.31 and 596.37 is: 894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    815.52 : 1,223.31 = 596.37 : x
  2. Step 2: Convert to fraction form
    815.52/1,223.31 = 596.37/x
  3. Step 3: Cross multiply
    815.52x = 1,223.31 × 596.37
  4. Step 4: Simplify right side
    815.52x = 729,545.38
  5. Step 5: Solve for x
    x = 729,545.38/815.52
  6. Step 6: Final answer
    x = 894.58

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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.