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Finding the Fourth Proportional to 792.26, 1,093.49 and 493.56

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Solution

The fourth proportional to 792.26, 1,093.49 and 493.56 is: 681.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.26 : 1,093.49 = 493.56 : x
  2. Step 2: Convert to fraction form
    792.26/1,093.49 = 493.56/x
  3. Step 3: Cross multiply
    792.26x = 1,093.49 × 493.56
  4. Step 4: Simplify right side
    792.26x = 539,700.46
  5. Step 5: Solve for x
    x = 539,700.46/792.26
  6. Step 6: Final answer
    x = 681.22

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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.