Home / 2,121,989.62-3,181,198.64-923,008.72

Finding the Fourth Proportional to 2,121,989.62, 3,181,198.64 and 923,008.72

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Solution

The fourth proportional to 2,121,989.62, 3,181,198.64 and 923,008.72 is: 1,383,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,989.62 : 3,181,198.64 = 923,008.72 : x
  2. Step 2: Convert to fraction form
    2,121,989.62/3,181,198.64 = 923,008.72/x
  3. Step 3: Cross multiply
    2,121,989.62x = 3,181,198.64 × 923,008.72
  4. Step 4: Simplify right side
    2,121,989.62x = 2,936,274,084,772.14
  5. Step 5: Solve for x
    x = 2,936,274,084,772.14/2,121,989.62
  6. Step 6: Final answer
    x = 1,383,736.31

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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.