Home / 1,263,300.80-1,743,351.54-690,344.60

Finding the Fourth Proportional to 1,263,300.80, 1,743,351.54 and 690,344.60

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Solution

The fourth proportional to 1,263,300.80, 1,743,351.54 and 690,344.60 is: 952,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,300.80 : 1,743,351.54 = 690,344.60 : x
  2. Step 2: Convert to fraction form
    1,263,300.80/1,743,351.54 = 690,344.60/x
  3. Step 3: Cross multiply
    1,263,300.80x = 1,743,351.54 × 690,344.60
  4. Step 4: Simplify right side
    1,263,300.80x = 1,203,513,321,540.68
  5. Step 5: Solve for x
    x = 1,203,513,321,540.68/1,263,300.80
  6. Step 6: Final answer
    x = 952,673.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.