Home / 2,661,309.68-3,991,964.52-839,859.22

Finding the Fourth Proportional to 2,661,309.68, 3,991,964.52 and 839,859.22

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Solution

The fourth proportional to 2,661,309.68, 3,991,964.52 and 839,859.22 is: 1,259,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,309.68 : 3,991,964.52 = 839,859.22 : x
  2. Step 2: Convert to fraction form
    2,661,309.68/3,991,964.52 = 839,859.22/x
  3. Step 3: Cross multiply
    2,661,309.68x = 3,991,964.52 × 839,859.22
  4. Step 4: Simplify right side
    2,661,309.68x = 3,352,688,208,034.87
  5. Step 5: Solve for x
    x = 3,352,688,208,034.87/2,661,309.68
  6. Step 6: Final answer
    x = 1,259,788.83

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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.