Home / 1,945,149.21-2,684,346.35-1,085,745.69

Finding the Fourth Proportional to 1,945,149.21, 2,684,346.35 and 1,085,745.69

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Solution

The fourth proportional to 1,945,149.21, 2,684,346.35 and 1,085,745.69 is: 1,498,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,149.21 : 2,684,346.35 = 1,085,745.69 : x
  2. Step 2: Convert to fraction form
    1,945,149.21/2,684,346.35 = 1,085,745.69/x
  3. Step 3: Cross multiply
    1,945,149.21x = 2,684,346.35 × 1,085,745.69
  4. Step 4: Simplify right side
    1,945,149.21x = 2,914,517,474,551.00
  5. Step 5: Solve for x
    x = 2,914,517,474,551.00/1,945,149.21
  6. Step 6: Final answer
    x = 1,498,351.62

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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.