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Finding the Fourth Proportional to 563.24, 839.89 and 524.28

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Solution

The fourth proportional to 563.24, 839.89 and 524.28 is: 781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.24 : 839.89 = 524.28 : x
  2. Step 2: Convert to fraction form
    563.24/839.89 = 524.28/x
  3. Step 3: Cross multiply
    563.24x = 839.89 × 524.28
  4. Step 4: Simplify right side
    563.24x = 440,337.53
  5. Step 5: Solve for x
    x = 440,337.53/563.24
  6. Step 6: Final answer
    x = 781.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.