Home / 2,131,019.80-3,198,344.10-869,752.60

Finding the Fourth Proportional to 2,131,019.80, 3,198,344.10 and 869,752.60

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Solution

The fourth proportional to 2,131,019.80, 3,198,344.10 and 869,752.60 is: 1,305,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,019.80 : 3,198,344.10 = 869,752.60 : x
  2. Step 2: Convert to fraction form
    2,131,019.80/3,198,344.10 = 869,752.60/x
  3. Step 3: Cross multiply
    2,131,019.80x = 3,198,344.10 × 869,752.60
  4. Step 4: Simplify right side
    2,131,019.80x = 2,781,768,096,669.66
  5. Step 5: Solve for x
    x = 2,781,768,096,669.66/2,131,019.80
  6. Step 6: Final answer
    x = 1,305,369.43

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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.