Home / 681,198.07-1,019,969.76-380,823.16

Finding the Fourth Proportional to 681,198.07, 1,019,969.76 and 380,823.16

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Solution

The fourth proportional to 681,198.07, 1,019,969.76 and 380,823.16 is: 570,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,198.07 : 1,019,969.76 = 380,823.16 : x
  2. Step 2: Convert to fraction form
    681,198.07/1,019,969.76 = 380,823.16/x
  3. Step 3: Cross multiply
    681,198.07x = 1,019,969.76 × 380,823.16
  4. Step 4: Simplify right side
    681,198.07x = 388,428,107,107.64
  5. Step 5: Solve for x
    x = 388,428,107,107.64/681,198.07
  6. Step 6: Final answer
    x = 570,213.16

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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.