Home / 1,386,917.21-2,080,375.82-959,107.21

Finding the Fourth Proportional to 1,386,917.21, 2,080,375.82 and 959,107.21

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Solution

The fourth proportional to 1,386,917.21, 2,080,375.82 and 959,107.21 is: 1,438,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,917.21 : 2,080,375.82 = 959,107.21 : x
  2. Step 2: Convert to fraction form
    1,386,917.21/2,080,375.82 = 959,107.21/x
  3. Step 3: Cross multiply
    1,386,917.21x = 2,080,375.82 × 959,107.21
  4. Step 4: Simplify right side
    1,386,917.21x = 1,995,303,442,071.84
  5. Step 5: Solve for x
    x = 1,995,303,442,071.84/1,386,917.21
  6. Step 6: Final answer
    x = 1,438,660.81

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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.