Home / 2,172,811.20-3,259,216.80-1,612,939.20

Finding the Fourth Proportional to 2,172,811.20, 3,259,216.80 and 1,612,939.20

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Solution

The fourth proportional to 2,172,811.20, 3,259,216.80 and 1,612,939.20 is: 2,419,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,811.20 : 3,259,216.80 = 1,612,939.20 : x
  2. Step 2: Convert to fraction form
    2,172,811.20/3,259,216.80 = 1,612,939.20/x
  3. Step 3: Cross multiply
    2,172,811.20x = 3,259,216.80 × 1,612,939.20
  4. Step 4: Simplify right side
    2,172,811.20x = 5,256,918,538,018.56
  5. Step 5: Solve for x
    x = 5,256,918,538,018.56/2,172,811.20
  6. Step 6: Final answer
    x = 2,419,408.80

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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.