Home / 1,287,940.22-1,777,268.46-714,935.30

Finding the Fourth Proportional to 1,287,940.22, 1,777,268.46 and 714,935.30

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Solution

The fourth proportional to 1,287,940.22, 1,777,268.46 and 714,935.30 is: 986,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,940.22 : 1,777,268.46 = 714,935.30 : x
  2. Step 2: Convert to fraction form
    1,287,940.22/1,777,268.46 = 714,935.30/x
  3. Step 3: Cross multiply
    1,287,940.22x = 1,777,268.46 × 714,935.30
  4. Step 4: Simplify right side
    1,287,940.22x = 1,270,631,959,630.64
  5. Step 5: Solve for x
    x = 1,270,631,959,630.64/1,287,940.22
  6. Step 6: Final answer
    x = 986,561.29

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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.