Home / 752,912.31-1,129,202.40-220,474.86

Finding the Fourth Proportional to 752,912.31, 1,129,202.40 and 220,474.86

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Solution

The fourth proportional to 752,912.31, 1,129,202.40 and 220,474.86 is: 330,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,912.31 : 1,129,202.40 = 220,474.86 : x
  2. Step 2: Convert to fraction form
    752,912.31/1,129,202.40 = 220,474.86/x
  3. Step 3: Cross multiply
    752,912.31x = 1,129,202.40 × 220,474.86
  4. Step 4: Simplify right side
    752,912.31x = 248,960,741,051.66
  5. Step 5: Solve for x
    x = 248,960,741,051.66/752,912.31
  6. Step 6: Final answer
    x = 330,663.66

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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.