Home / 2,659,666.80-3,992,005.80-1,398,399.60

Finding the Fourth Proportional to 2,659,666.80, 3,992,005.80 and 1,398,399.60

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Solution

The fourth proportional to 2,659,666.80, 3,992,005.80 and 1,398,399.60 is: 2,098,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,666.80 : 3,992,005.80 = 1,398,399.60 : x
  2. Step 2: Convert to fraction form
    2,659,666.80/3,992,005.80 = 1,398,399.60/x
  3. Step 3: Cross multiply
    2,659,666.80x = 3,992,005.80 × 1,398,399.60
  4. Step 4: Simplify right side
    2,659,666.80x = 5,582,419,313,917.68
  5. Step 5: Solve for x
    x = 5,582,419,313,917.68/2,659,666.80
  6. Step 6: Final answer
    x = 2,098,916.79

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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.