Home / 752,803.40-1,129,378.22-220,311.88

Finding the Fourth Proportional to 752,803.40, 1,129,378.22 and 220,311.88

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Solution

The fourth proportional to 752,803.40, 1,129,378.22 and 220,311.88 is: 330,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,803.40 : 1,129,378.22 = 220,311.88 : x
  2. Step 2: Convert to fraction form
    752,803.40/1,129,378.22 = 220,311.88/x
  3. Step 3: Cross multiply
    752,803.40x = 1,129,378.22 × 220,311.88
  4. Step 4: Simplify right side
    752,803.40x = 248,815,438,879.25
  5. Step 5: Solve for x
    x = 248,815,438,879.25/752,803.40
  6. Step 6: Final answer
    x = 330,518.48

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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.