Home / 1,181,918.87-1,642,059.32-1,167,747.11

Finding the Fourth Proportional to 1,181,918.87, 1,642,059.32 and 1,167,747.11

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Solution

The fourth proportional to 1,181,918.87, 1,642,059.32 and 1,167,747.11 is: 1,622,370.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,918.87 : 1,642,059.32 = 1,167,747.11 : x
  2. Step 2: Convert to fraction form
    1,181,918.87/1,642,059.32 = 1,167,747.11/x
  3. Step 3: Cross multiply
    1,181,918.87x = 1,642,059.32 × 1,167,747.11
  4. Step 4: Simplify right side
    1,181,918.87x = 1,917,510,025,378.57
  5. Step 5: Solve for x
    x = 1,917,510,025,378.57/1,181,918.87
  6. Step 6: Final answer
    x = 1,622,370.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.