Home / 2,660,961.76-3,989,620.80-955,067.20

Finding the Fourth Proportional to 2,660,961.76, 3,989,620.80 and 955,067.20

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Solution

The fourth proportional to 2,660,961.76, 3,989,620.80 and 955,067.20 is: 1,431,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,961.76 : 3,989,620.80 = 955,067.20 : x
  2. Step 2: Convert to fraction form
    2,660,961.76/3,989,620.80 = 955,067.20/x
  3. Step 3: Cross multiply
    2,660,961.76x = 3,989,620.80 × 955,067.20
  4. Step 4: Simplify right side
    2,660,961.76x = 3,810,355,966,517.76
  5. Step 5: Solve for x
    x = 3,810,355,966,517.76/2,660,961.76
  6. Step 6: Final answer
    x = 1,431,946.91

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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.