Home / 752,945.10-1,129,335-220,471.32

Finding the Fourth Proportional to 752,945.10, 1,129,335 and 220,471.32

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Solution

The fourth proportional to 752,945.10, 1,129,335 and 220,471.32 is: 330,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,945.10 : 1,129,335 = 220,471.32 : x
  2. Step 2: Convert to fraction form
    752,945.10/1,129,335 = 220,471.32/x
  3. Step 3: Cross multiply
    752,945.10x = 1,129,335 × 220,471.32
  4. Step 4: Simplify right side
    752,945.10x = 248,985,978,172.20
  5. Step 5: Solve for x
    x = 248,985,978,172.20/752,945.10
  6. Step 6: Final answer
    x = 330,682.78

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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.