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Finding the Fourth Proportional to 827.73, 1,241.87 and 674.01

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Solution

The fourth proportional to 827.73, 1,241.87 and 674.01 is: 1,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    827.73 : 1,241.87 = 674.01 : x
  2. Step 2: Convert to fraction form
    827.73/1,241.87 = 674.01/x
  3. Step 3: Cross multiply
    827.73x = 1,241.87 × 674.01
  4. Step 4: Simplify right side
    827.73x = 837,029.43
  5. Step 5: Solve for x
    x = 837,029.43/827.73
  6. Step 6: Final answer
    x = 1,011.23

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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.