Home / 752,707.13-1,128,839.25-220,101.55

Finding the Fourth Proportional to 752,707.13, 1,128,839.25 and 220,101.55

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Solution

The fourth proportional to 752,707.13, 1,128,839.25 and 220,101.55 is: 330,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,707.13 : 1,128,839.25 = 220,101.55 : x
  2. Step 2: Convert to fraction form
    752,707.13/1,128,839.25 = 220,101.55/x
  3. Step 3: Cross multiply
    752,707.13x = 1,128,839.25 × 220,101.55
  4. Step 4: Simplify right side
    752,707.13x = 248,459,266,629.12
  5. Step 5: Solve for x
    x = 248,459,266,629.12/752,707.13
  6. Step 6: Final answer
    x = 330,087.57

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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.