Home / 816,759.90-1,225,198.20-217,717.92

Finding the Fourth Proportional to 816,759.90, 1,225,198.20 and 217,717.92

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Solution

The fourth proportional to 816,759.90, 1,225,198.20 and 217,717.92 is: 326,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,759.90 : 1,225,198.20 = 217,717.92 : x
  2. Step 2: Convert to fraction form
    816,759.90/1,225,198.20 = 217,717.92/x
  3. Step 3: Cross multiply
    816,759.90x = 1,225,198.20 × 217,717.92
  4. Step 4: Simplify right side
    816,759.90x = 266,747,603,691.74
  5. Step 5: Solve for x
    x = 266,747,603,691.74/816,759.90
  6. Step 6: Final answer
    x = 326,592.43

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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.