Home / 1,405,893.28-1,940,203.38-825,141.58

Finding the Fourth Proportional to 1,405,893.28, 1,940,203.38 and 825,141.58

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Solution

The fourth proportional to 1,405,893.28, 1,940,203.38 and 825,141.58 is: 1,138,736.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,893.28 : 1,940,203.38 = 825,141.58 : x
  2. Step 2: Convert to fraction form
    1,405,893.28/1,940,203.38 = 825,141.58/x
  3. Step 3: Cross multiply
    1,405,893.28x = 1,940,203.38 × 825,141.58
  4. Step 4: Simplify right side
    1,405,893.28x = 1,600,942,482,494.54
  5. Step 5: Solve for x
    x = 1,600,942,482,494.54/1,405,893.28
  6. Step 6: Final answer
    x = 1,138,736.85

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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.