Home / 1,378,076.88-2,067,391.24-771,727.48

Finding the Fourth Proportional to 1,378,076.88, 2,067,391.24 and 771,727.48

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Solution

The fourth proportional to 1,378,076.88, 2,067,391.24 and 771,727.48 is: 1,157,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,076.88 : 2,067,391.24 = 771,727.48 : x
  2. Step 2: Convert to fraction form
    1,378,076.88/2,067,391.24 = 771,727.48/x
  3. Step 3: Cross multiply
    1,378,076.88x = 2,067,391.24 × 771,727.48
  4. Step 4: Simplify right side
    1,378,076.88x = 1,595,462,627,046.83
  5. Step 5: Solve for x
    x = 1,595,462,627,046.83/1,378,076.88
  6. Step 6: Final answer
    x = 1,157,745.74

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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.