Home / 1,344,605.57-1,855,647.47-821,540.11

Finding the Fourth Proportional to 1,344,605.57, 1,855,647.47 and 821,540.11

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Solution

The fourth proportional to 1,344,605.57, 1,855,647.47 and 821,540.11 is: 1,133,781.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,605.57 : 1,855,647.47 = 821,540.11 : x
  2. Step 2: Convert to fraction form
    1,344,605.57/1,855,647.47 = 821,540.11/x
  3. Step 3: Cross multiply
    1,344,605.57x = 1,855,647.47 × 821,540.11
  4. Step 4: Simplify right side
    1,344,605.57x = 1,524,488,813,239.08
  5. Step 5: Solve for x
    x = 1,524,488,813,239.08/1,344,605.57
  6. Step 6: Final answer
    x = 1,133,781.42

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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.