Home / 752,755.20-1,129,018.32-220,133.76

Finding the Fourth Proportional to 752,755.20, 1,129,018.32 and 220,133.76

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Solution

The fourth proportional to 752,755.20, 1,129,018.32 and 220,133.76 is: 330,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,755.20 : 1,129,018.32 = 220,133.76 : x
  2. Step 2: Convert to fraction form
    752,755.20/1,129,018.32 = 220,133.76/x
  3. Step 3: Cross multiply
    752,755.20x = 1,129,018.32 × 220,133.76
  4. Step 4: Simplify right side
    752,755.20x = 248,535,047,890.48
  5. Step 5: Solve for x
    x = 248,535,047,890.48/752,755.20
  6. Step 6: Final answer
    x = 330,167.16

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1.5x scale

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.