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Finding the Fourth Proportional to 792.72, 1,095.39 and 605.97

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Solution

The fourth proportional to 792.72, 1,095.39 and 605.97 is: 837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.72 : 1,095.39 = 605.97 : x
  2. Step 2: Convert to fraction form
    792.72/1,095.39 = 605.97/x
  3. Step 3: Cross multiply
    792.72x = 1,095.39 × 605.97
  4. Step 4: Simplify right side
    792.72x = 663,773.48
  5. Step 5: Solve for x
    x = 663,773.48/792.72
  6. Step 6: Final answer
    x = 837.34

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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.