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Finding the Fourth Proportional to 483,876.97, 667,787.57 and 290,291.93

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Solution

The fourth proportional to 483,876.97, 667,787.57 and 290,291.93 is: 400,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,876.97 : 667,787.57 = 290,291.93 : x
  2. Step 2: Convert to fraction form
    483,876.97/667,787.57 = 290,291.93/x
  3. Step 3: Cross multiply
    483,876.97x = 667,787.57 × 290,291.93
  4. Step 4: Simplify right side
    483,876.97x = 193,853,337,734.91
  5. Step 5: Solve for x
    x = 193,853,337,734.91/483,876.97
  6. Step 6: Final answer
    x = 400,625.27

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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.