Home / 1,270,986.26-1,753,954.22-690,204.38

Finding the Fourth Proportional to 1,270,986.26, 1,753,954.22 and 690,204.38

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Solution

The fourth proportional to 1,270,986.26, 1,753,954.22 and 690,204.38 is: 952,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,986.26 : 1,753,954.22 = 690,204.38 : x
  2. Step 2: Convert to fraction form
    1,270,986.26/1,753,954.22 = 690,204.38/x
  3. Step 3: Cross multiply
    1,270,986.26x = 1,753,954.22 × 690,204.38
  4. Step 4: Simplify right side
    1,270,986.26x = 1,210,586,884,963.48
  5. Step 5: Solve for x
    x = 1,210,586,884,963.48/1,270,986.26
  6. Step 6: Final answer
    x = 952,478.34

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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.