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Finding the Fourth Proportional to 697.26, 1,043.85 and 536.82

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Solution

The fourth proportional to 697.26, 1,043.85 and 536.82 is: 803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.26 : 1,043.85 = 536.82 : x
  2. Step 2: Convert to fraction form
    697.26/1,043.85 = 536.82/x
  3. Step 3: Cross multiply
    697.26x = 1,043.85 × 536.82
  4. Step 4: Simplify right side
    697.26x = 560,359.56
  5. Step 5: Solve for x
    x = 560,359.56/697.26
  6. Step 6: Final answer
    x = 803.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.