Home / 1,321,143.26-1,823,187.03-717,531.26

Finding the Fourth Proportional to 1,321,143.26, 1,823,187.03 and 717,531.26

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Solution

The fourth proportional to 1,321,143.26, 1,823,187.03 and 717,531.26 is: 990,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,143.26 : 1,823,187.03 = 717,531.26 : x
  2. Step 2: Convert to fraction form
    1,321,143.26/1,823,187.03 = 717,531.26/x
  3. Step 3: Cross multiply
    1,321,143.26x = 1,823,187.03 × 717,531.26
  4. Step 4: Simplify right side
    1,321,143.26x = 1,308,193,686,851.56
  5. Step 5: Solve for x
    x = 1,308,193,686,851.56/1,321,143.26
  6. Step 6: Final answer
    x = 990,198.21

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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.