Home / 2,131,309.98-3,197,180.25-691,933.20

Finding the Fourth Proportional to 2,131,309.98, 3,197,180.25 and 691,933.20

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Solution

The fourth proportional to 2,131,309.98, 3,197,180.25 and 691,933.20 is: 1,037,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,309.98 : 3,197,180.25 = 691,933.20 : x
  2. Step 2: Convert to fraction form
    2,131,309.98/3,197,180.25 = 691,933.20/x
  3. Step 3: Cross multiply
    2,131,309.98x = 3,197,180.25 × 691,933.20
  4. Step 4: Simplify right side
    2,131,309.98x = 2,212,235,161,359.30
  5. Step 5: Solve for x
    x = 2,212,235,161,359.30/2,131,309.98
  6. Step 6: Final answer
    x = 1,037,969.69

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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.