Home / 3,111,178.91-4,294,375.79-1,804,761.09

Finding the Fourth Proportional to 3,111,178.91, 4,294,375.79 and 1,804,761.09

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Solution

The fourth proportional to 3,111,178.91, 4,294,375.79 and 1,804,761.09 is: 2,491,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,178.91 : 4,294,375.79 = 1,804,761.09 : x
  2. Step 2: Convert to fraction form
    3,111,178.91/4,294,375.79 = 1,804,761.09/x
  3. Step 3: Cross multiply
    3,111,178.91x = 4,294,375.79 × 1,804,761.09
  4. Step 4: Simplify right side
    3,111,178.91x = 7,750,322,322,606.21
  5. Step 5: Solve for x
    x = 7,750,322,322,606.21/3,111,178.91
  6. Step 6: Final answer
    x = 2,491,120.75

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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.