Home / 1,187,162.28-1,638,314.37-677,912.04

Finding the Fourth Proportional to 1,187,162.28, 1,638,314.37 and 677,912.04

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Solution

The fourth proportional to 1,187,162.28, 1,638,314.37 and 677,912.04 is: 935,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,162.28 : 1,638,314.37 = 677,912.04 : x
  2. Step 2: Convert to fraction form
    1,187,162.28/1,638,314.37 = 677,912.04/x
  3. Step 3: Cross multiply
    1,187,162.28x = 1,638,314.37 × 677,912.04
  4. Step 4: Simplify right side
    1,187,162.28x = 1,110,633,036,728.01
  5. Step 5: Solve for x
    x = 1,110,633,036,728.01/1,187,162.28
  6. Step 6: Final answer
    x = 935,535.99

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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.