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Finding the Fourth Proportional to 553.91, 762.81 and 552.24

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Solution

The fourth proportional to 553.91, 762.81 and 552.24 is: 760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.91 : 762.81 = 552.24 : x
  2. Step 2: Convert to fraction form
    553.91/762.81 = 552.24/x
  3. Step 3: Cross multiply
    553.91x = 762.81 × 552.24
  4. Step 4: Simplify right side
    553.91x = 421,250.38
  5. Step 5: Solve for x
    x = 421,250.38/553.91
  6. Step 6: Final answer
    x = 760.51

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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.