Home / 2,072,690.82-3,109,036.26-809,632.68

Finding the Fourth Proportional to 2,072,690.82, 3,109,036.26 and 809,632.68

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Solution

The fourth proportional to 2,072,690.82, 3,109,036.26 and 809,632.68 is: 1,214,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,690.82 : 3,109,036.26 = 809,632.68 : x
  2. Step 2: Convert to fraction form
    2,072,690.82/3,109,036.26 = 809,632.68/x
  3. Step 3: Cross multiply
    2,072,690.82x = 3,109,036.26 × 809,632.68
  4. Step 4: Simplify right side
    2,072,690.82x = 2,517,177,359,400.98
  5. Step 5: Solve for x
    x = 2,517,177,359,400.98/2,072,690.82
  6. Step 6: Final answer
    x = 1,214,449.03

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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.