Home / 1,557,025.74-2,149,578.30-1,012,889.21

Finding the Fourth Proportional to 1,557,025.74, 2,149,578.30 and 1,012,889.21

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Solution

The fourth proportional to 1,557,025.74, 2,149,578.30 and 1,012,889.21 is: 1,398,361.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,025.74 : 2,149,578.30 = 1,012,889.21 : x
  2. Step 2: Convert to fraction form
    1,557,025.74/2,149,578.30 = 1,012,889.21/x
  3. Step 3: Cross multiply
    1,557,025.74x = 2,149,578.30 × 1,012,889.21
  4. Step 4: Simplify right side
    1,557,025.74x = 2,177,284,659,170.59
  5. Step 5: Solve for x
    x = 2,177,284,659,170.59/1,557,025.74
  6. Step 6: Final answer
    x = 1,398,361.38

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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.