Home / 1,378,395.72-2,067,321.06-1,310,040.14

Finding the Fourth Proportional to 1,378,395.72, 2,067,321.06 and 1,310,040.14

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Solution

The fourth proportional to 1,378,395.72, 2,067,321.06 and 1,310,040.14 is: 1,964,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,395.72 : 2,067,321.06 = 1,310,040.14 : x
  2. Step 2: Convert to fraction form
    1,378,395.72/2,067,321.06 = 1,310,040.14/x
  3. Step 3: Cross multiply
    1,378,395.72x = 2,067,321.06 × 1,310,040.14
  4. Step 4: Simplify right side
    1,378,395.72x = 2,708,273,560,530.74
  5. Step 5: Solve for x
    x = 2,708,273,560,530.74/1,378,395.72
  6. Step 6: Final answer
    x = 1,964,801.20

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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.