Home / 1,091,949.44-1,638,249.28-789,028.16

Finding the Fourth Proportional to 1,091,949.44, 1,638,249.28 and 789,028.16

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Solution

The fourth proportional to 1,091,949.44, 1,638,249.28 and 789,028.16 is: 1,183,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,949.44 : 1,638,249.28 = 789,028.16 : x
  2. Step 2: Convert to fraction form
    1,091,949.44/1,638,249.28 = 789,028.16/x
  3. Step 3: Cross multiply
    1,091,949.44x = 1,638,249.28 × 789,028.16
  4. Step 4: Simplify right side
    1,091,949.44x = 1,292,624,815,019.72
  5. Step 5: Solve for x
    x = 1,292,624,815,019.72/1,091,949.44
  6. Step 6: Final answer
    x = 1,183,777.17

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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.