Home / 1,287,842.36-1,777,133.56-714,837.44

Finding the Fourth Proportional to 1,287,842.36, 1,777,133.56 and 714,837.44

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Solution

The fourth proportional to 1,287,842.36, 1,777,133.56 and 714,837.44 is: 986,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,842.36 : 1,777,133.56 = 714,837.44 : x
  2. Step 2: Convert to fraction form
    1,287,842.36/1,777,133.56 = 714,837.44/x
  3. Step 3: Cross multiply
    1,287,842.36x = 1,777,133.56 × 714,837.44
  4. Step 4: Simplify right side
    1,287,842.36x = 1,270,361,604,568.49
  5. Step 5: Solve for x
    x = 1,270,361,604,568.49/1,287,842.36
  6. Step 6: Final answer
    x = 986,426.32

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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.