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Finding the Fourth Proportional to 1,194.01, 1,791.38 and 805.57

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Solution

The fourth proportional to 1,194.01, 1,791.38 and 805.57 is: 1,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.01 : 1,791.38 = 805.57 : x
  2. Step 2: Convert to fraction form
    1,194.01/1,791.38 = 805.57/x
  3. Step 3: Cross multiply
    1,194.01x = 1,791.38 × 805.57
  4. Step 4: Simplify right side
    1,194.01x = 1,443,081.99
  5. Step 5: Solve for x
    x = 1,443,081.99/1,194.01
  6. Step 6: Final answer
    x = 1,208.60

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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.