Home / 729,408.12-1,093,363.74-280,007.97

Finding the Fourth Proportional to 729,408.12, 1,093,363.74 and 280,007.97

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Solution

The fourth proportional to 729,408.12, 1,093,363.74 and 280,007.97 is: 419,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,408.12 : 1,093,363.74 = 280,007.97 : x
  2. Step 2: Convert to fraction form
    729,408.12/1,093,363.74 = 280,007.97/x
  3. Step 3: Cross multiply
    729,408.12x = 1,093,363.74 × 280,007.97
  4. Step 4: Simplify right side
    729,408.12x = 306,150,561,309.01
  5. Step 5: Solve for x
    x = 306,150,561,309.01/729,408.12
  6. Step 6: Final answer
    x = 419,724.64

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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.