Home / 276,579.40-414,869.10-272,642.80

Finding the Fourth Proportional to 276,579.40, 414,869.10 and 272,642.80

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Solution

The fourth proportional to 276,579.40, 414,869.10 and 272,642.80 is: 408,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,579.40 : 414,869.10 = 272,642.80 : x
  2. Step 2: Convert to fraction form
    276,579.40/414,869.10 = 272,642.80/x
  3. Step 3: Cross multiply
    276,579.40x = 414,869.10 × 272,642.80
  4. Step 4: Simplify right side
    276,579.40x = 113,111,073,057.48
  5. Step 5: Solve for x
    x = 113,111,073,057.48/276,579.40
  6. Step 6: Final answer
    x = 408,964.20

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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.