Home / 1,270,986.78-1,753,954.62-690,204.30

Finding the Fourth Proportional to 1,270,986.78, 1,753,954.62 and 690,204.30

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Solution

The fourth proportional to 1,270,986.78, 1,753,954.62 and 690,204.30 is: 952,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,986.78 : 1,753,954.62 = 690,204.30 : x
  2. Step 2: Convert to fraction form
    1,270,986.78/1,753,954.62 = 690,204.30/x
  3. Step 3: Cross multiply
    1,270,986.78x = 1,753,954.62 × 690,204.30
  4. Step 4: Simplify right side
    1,270,986.78x = 1,210,587,020,728.87
  5. Step 5: Solve for x
    x = 1,210,587,020,728.87/1,270,986.78
  6. Step 6: Final answer
    x = 952,478.06

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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.