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Finding the Fourth Proportional to 943.34, 1,301.82 and 523.70

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Solution

The fourth proportional to 943.34, 1,301.82 and 523.70 is: 722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.34 : 1,301.82 = 523.70 : x
  2. Step 2: Convert to fraction form
    943.34/1,301.82 = 523.70/x
  3. Step 3: Cross multiply
    943.34x = 1,301.82 × 523.70
  4. Step 4: Simplify right side
    943.34x = 681,763.13
  5. Step 5: Solve for x
    x = 681,763.13/943.34
  6. Step 6: Final answer
    x = 722.71

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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.