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Finding the Fourth Proportional to 694.55, 1,044.26 and 581.56

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Solution

The fourth proportional to 694.55, 1,044.26 and 581.56 is: 874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.55 : 1,044.26 = 581.56 : x
  2. Step 2: Convert to fraction form
    694.55/1,044.26 = 581.56/x
  3. Step 3: Cross multiply
    694.55x = 1,044.26 × 581.56
  4. Step 4: Simplify right side
    694.55x = 607,299.85
  5. Step 5: Solve for x
    x = 607,299.85/694.55
  6. Step 6: Final answer
    x = 874.38

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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.