Home / 728,380.94-1,098,400.26-718,408.22

Finding the Fourth Proportional to 728,380.94, 1,098,400.26 and 718,408.22

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Solution

The fourth proportional to 728,380.94, 1,098,400.26 and 718,408.22 is: 1,083,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,380.94 : 1,098,400.26 = 718,408.22 : x
  2. Step 2: Convert to fraction form
    728,380.94/1,098,400.26 = 718,408.22/x
  3. Step 3: Cross multiply
    728,380.94x = 1,098,400.26 × 718,408.22
  4. Step 4: Simplify right side
    728,380.94x = 789,099,775,634.14
  5. Step 5: Solve for x
    x = 789,099,775,634.14/728,380.94
  6. Step 6: Final answer
    x = 1,083,361.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.