Home / 1,086,137.60-1,629,789.60-455,115.20

Finding the Fourth Proportional to 1,086,137.60, 1,629,789.60 and 455,115.20

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Solution

The fourth proportional to 1,086,137.60, 1,629,789.60 and 455,115.20 is: 682,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,137.60 : 1,629,789.60 = 455,115.20 : x
  2. Step 2: Convert to fraction form
    1,086,137.60/1,629,789.60 = 455,115.20/x
  3. Step 3: Cross multiply
    1,086,137.60x = 1,629,789.60 × 455,115.20
  4. Step 4: Simplify right side
    1,086,137.60x = 741,742,019,761.92
  5. Step 5: Solve for x
    x = 741,742,019,761.92/1,086,137.60
  6. Step 6: Final answer
    x = 682,917.17

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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.