Home / 1,899,945.64-2,621,928.90-1,028,789.56

Finding the Fourth Proportional to 1,899,945.64, 2,621,928.90 and 1,028,789.56

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Solution

The fourth proportional to 1,899,945.64, 2,621,928.90 and 1,028,789.56 is: 1,419,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,945.64 : 2,621,928.90 = 1,028,789.56 : x
  2. Step 2: Convert to fraction form
    1,899,945.64/2,621,928.90 = 1,028,789.56/x
  3. Step 3: Cross multiply
    1,899,945.64x = 2,621,928.90 × 1,028,789.56
  4. Step 4: Simplify right side
    1,899,945.64x = 2,697,413,079,382.28
  5. Step 5: Solve for x
    x = 2,697,413,079,382.28/1,899,945.64
  6. Step 6: Final answer
    x = 1,419,731.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.