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Finding the Fourth Proportional to 552.27, 762.56 and 413.96

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Solution

The fourth proportional to 552.27, 762.56 and 413.96 is: 571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.27 : 762.56 = 413.96 : x
  2. Step 2: Convert to fraction form
    552.27/762.56 = 413.96/x
  3. Step 3: Cross multiply
    552.27x = 762.56 × 413.96
  4. Step 4: Simplify right side
    552.27x = 315,663.46
  5. Step 5: Solve for x
    x = 315,663.46/552.27
  6. Step 6: Final answer
    x = 571.57

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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.