Home / 1,287,851.97-1,777,146.81-714,847.03

Finding the Fourth Proportional to 1,287,851.97, 1,777,146.81 and 714,847.03

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Solution

The fourth proportional to 1,287,851.97, 1,777,146.81 and 714,847.03 is: 986,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,851.97 : 1,777,146.81 = 714,847.03 : x
  2. Step 2: Convert to fraction form
    1,287,851.97/1,777,146.81 = 714,847.03/x
  3. Step 3: Cross multiply
    1,287,851.97x = 1,777,146.81 × 714,847.03
  4. Step 4: Simplify right side
    1,287,851.97x = 1,270,388,122,564.25
  5. Step 5: Solve for x
    x = 1,270,388,122,564.25/1,287,851.97
  6. Step 6: Final answer
    x = 986,439.56

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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.