Home / 2,179,381.20-3,268,939.46-812,891.49

Finding the Fourth Proportional to 2,179,381.20, 3,268,939.46 and 812,891.49

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Solution

The fourth proportional to 2,179,381.20, 3,268,939.46 and 812,891.49 is: 1,219,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,381.20 : 3,268,939.46 = 812,891.49 : x
  2. Step 2: Convert to fraction form
    2,179,381.20/3,268,939.46 = 812,891.49/x
  3. Step 3: Cross multiply
    2,179,381.20x = 3,268,939.46 × 812,891.49
  4. Step 4: Simplify right side
    2,179,381.20x = 2,657,293,070,983.34
  5. Step 5: Solve for x
    x = 2,657,293,070,983.34/2,179,381.20
  6. Step 6: Final answer
    x = 1,219,287.87

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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.