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Finding the Fourth Proportional to 981,369.36, 1,472,418.54 and 681,692.04

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Solution

The fourth proportional to 981,369.36, 1,472,418.54 and 681,692.04 is: 1,022,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,369.36 : 1,472,418.54 = 681,692.04 : x
  2. Step 2: Convert to fraction form
    981,369.36/1,472,418.54 = 681,692.04/x
  3. Step 3: Cross multiply
    981,369.36x = 1,472,418.54 × 681,692.04
  4. Step 4: Simplify right side
    981,369.36x = 1,003,735,998,266.42
  5. Step 5: Solve for x
    x = 1,003,735,998,266.42/981,369.36
  6. Step 6: Final answer
    x = 1,022,791.25

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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.