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Finding the Fourth Proportional to 1,192.92, 1,789.51 and 327.23

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Solution

The fourth proportional to 1,192.92, 1,789.51 and 327.23 is: 490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.92 : 1,789.51 = 327.23 : x
  2. Step 2: Convert to fraction form
    1,192.92/1,789.51 = 327.23/x
  3. Step 3: Cross multiply
    1,192.92x = 1,789.51 × 327.23
  4. Step 4: Simplify right side
    1,192.92x = 585,588.98
  5. Step 5: Solve for x
    x = 585,588.98/1,192.92
  6. Step 6: Final answer
    x = 490.89

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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.