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Finding the Fourth Proportional to 524.20, 718.64 and 523.56

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Solution

The fourth proportional to 524.20, 718.64 and 523.56 is: 717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.20 : 718.64 = 523.56 : x
  2. Step 2: Convert to fraction form
    524.20/718.64 = 523.56/x
  3. Step 3: Cross multiply
    524.20x = 718.64 × 523.56
  4. Step 4: Simplify right side
    524.20x = 376,251.16
  5. Step 5: Solve for x
    x = 376,251.16/524.20
  6. Step 6: Final answer
    x = 717.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.