Home / 1,969,778.88-2,719,322.31-1,398,184.56

Finding the Fourth Proportional to 1,969,778.88, 2,719,322.31 and 1,398,184.56

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Solution

The fourth proportional to 1,969,778.88, 2,719,322.31 and 1,398,184.56 is: 1,930,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,778.88 : 2,719,322.31 = 1,398,184.56 : x
  2. Step 2: Convert to fraction form
    1,969,778.88/2,719,322.31 = 1,398,184.56/x
  3. Step 3: Cross multiply
    1,969,778.88x = 2,719,322.31 × 1,398,184.56
  4. Step 4: Simplify right side
    1,969,778.88x = 3,802,114,467,505.53
  5. Step 5: Solve for x
    x = 3,802,114,467,505.53/1,969,778.88
  6. Step 6: Final answer
    x = 1,930,224.00

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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.