Home / 1,112,067.70-1,534,516.05-789,660.16

Finding the Fourth Proportional to 1,112,067.70, 1,534,516.05 and 789,660.16

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Solution

The fourth proportional to 1,112,067.70, 1,534,516.05 and 789,660.16 is: 1,089,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,067.70 : 1,534,516.05 = 789,660.16 : x
  2. Step 2: Convert to fraction form
    1,112,067.70/1,534,516.05 = 789,660.16/x
  3. Step 3: Cross multiply
    1,112,067.70x = 1,534,516.05 × 789,660.16
  4. Step 4: Simplify right side
    1,112,067.70x = 1,211,746,189,565.57
  5. Step 5: Solve for x
    x = 1,211,746,189,565.57/1,112,067.70
  6. Step 6: Final answer
    x = 1,089,633.47

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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.