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Finding the Fourth Proportional to 893.97, 1,233.59 and 495.56

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Solution

The fourth proportional to 893.97, 1,233.59 and 495.56 is: 683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.97 : 1,233.59 = 495.56 : x
  2. Step 2: Convert to fraction form
    893.97/1,233.59 = 495.56/x
  3. Step 3: Cross multiply
    893.97x = 1,233.59 × 495.56
  4. Step 4: Simplify right side
    893.97x = 611,309.21
  5. Step 5: Solve for x
    x = 611,309.21/893.97
  6. Step 6: Final answer
    x = 683.81

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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.