Home / 668,791.91-1,002,977.10-219,408.06

Finding the Fourth Proportional to 668,791.91, 1,002,977.10 and 219,408.06

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Solution

The fourth proportional to 668,791.91, 1,002,977.10 and 219,408.06 is: 329,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,791.91 : 1,002,977.10 = 219,408.06 : x
  2. Step 2: Convert to fraction form
    668,791.91/1,002,977.10 = 219,408.06/x
  3. Step 3: Cross multiply
    668,791.91x = 1,002,977.10 × 219,408.06
  4. Step 4: Simplify right side
    668,791.91x = 220,061,257,854.84
  5. Step 5: Solve for x
    x = 220,061,257,854.84/668,791.91
  6. Step 6: Final answer
    x = 329,042.94

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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.