Home / 2,631,881.15-3,948,198.68-810,400.53

Finding the Fourth Proportional to 2,631,881.15, 3,948,198.68 and 810,400.53

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Solution

The fourth proportional to 2,631,881.15, 3,948,198.68 and 810,400.53 is: 1,215,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,881.15 : 3,948,198.68 = 810,400.53 : x
  2. Step 2: Convert to fraction form
    2,631,881.15/3,948,198.68 = 810,400.53/x
  3. Step 3: Cross multiply
    2,631,881.15x = 3,948,198.68 × 810,400.53
  4. Step 4: Simplify right side
    2,631,881.15x = 3,199,622,302,817.30
  5. Step 5: Solve for x
    x = 3,199,622,302,817.30/2,631,881.15
  6. Step 6: Final answer
    x = 1,215,716.87

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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.