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Finding the Fourth Proportional to 697.96, 963.38 and 559.04

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Solution

The fourth proportional to 697.96, 963.38 and 559.04 is: 771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.96 : 963.38 = 559.04 : x
  2. Step 2: Convert to fraction form
    697.96/963.38 = 559.04/x
  3. Step 3: Cross multiply
    697.96x = 963.38 × 559.04
  4. Step 4: Simplify right side
    697.96x = 538,571.76
  5. Step 5: Solve for x
    x = 538,571.76/697.96
  6. Step 6: Final answer
    x = 771.64

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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.