Home / 752,912.81-1,129,203.14-220,475.36

Finding the Fourth Proportional to 752,912.81, 1,129,203.14 and 220,475.36

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Solution

The fourth proportional to 752,912.81, 1,129,203.14 and 220,475.36 is: 330,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,912.81 : 1,129,203.14 = 220,475.36 : x
  2. Step 2: Convert to fraction form
    752,912.81/1,129,203.14 = 220,475.36/x
  3. Step 3: Cross multiply
    752,912.81x = 1,129,203.14 × 220,475.36
  4. Step 4: Simplify right side
    752,912.81x = 248,961,472,178.83
  5. Step 5: Solve for x
    x = 248,961,472,178.83/752,912.81
  6. Step 6: Final answer
    x = 330,664.41

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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.