Home / 752,079.89-1,128,008.87-219,457.91

Finding the Fourth Proportional to 752,079.89, 1,128,008.87 and 219,457.91

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Solution

The fourth proportional to 752,079.89, 1,128,008.87 and 219,457.91 is: 329,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,079.89 : 1,128,008.87 = 219,457.91 : x
  2. Step 2: Convert to fraction form
    752,079.89/1,128,008.87 = 219,457.91/x
  3. Step 3: Cross multiply
    752,079.89x = 1,128,008.87 × 219,457.91
  4. Step 4: Simplify right side
    752,079.89x = 247,550,471,617.36
  5. Step 5: Solve for x
    x = 247,550,471,617.36/752,079.89
  6. Step 6: Final answer
    x = 329,154.49

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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.