Home / 2,131,582.11-3,199,648.25-917,759.43

Finding the Fourth Proportional to 2,131,582.11, 3,199,648.25 and 917,759.43

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Solution

The fourth proportional to 2,131,582.11, 3,199,648.25 and 917,759.43 is: 1,377,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,582.11 : 3,199,648.25 = 917,759.43 : x
  2. Step 2: Convert to fraction form
    2,131,582.11/3,199,648.25 = 917,759.43/x
  3. Step 3: Cross multiply
    2,131,582.11x = 3,199,648.25 × 917,759.43
  4. Step 4: Simplify right side
    2,131,582.11x = 2,936,507,349,531.70
  5. Step 5: Solve for x
    x = 2,936,507,349,531.70/2,131,582.11
  6. Step 6: Final answer
    x = 1,377,618.69

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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.