Home / 1,324,231.20-1,986,346.80-326,959.20

Finding the Fourth Proportional to 1,324,231.20, 1,986,346.80 and 326,959.20

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Solution

The fourth proportional to 1,324,231.20, 1,986,346.80 and 326,959.20 is: 490,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,231.20 : 1,986,346.80 = 326,959.20 : x
  2. Step 2: Convert to fraction form
    1,324,231.20/1,986,346.80 = 326,959.20/x
  3. Step 3: Cross multiply
    1,324,231.20x = 1,986,346.80 × 326,959.20
  4. Step 4: Simplify right side
    1,324,231.20x = 649,454,360,650.56
  5. Step 5: Solve for x
    x = 649,454,360,650.56/1,324,231.20
  6. Step 6: Final answer
    x = 490,438.80

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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.