Home / 1,204,138.39-1,804,943.22-405,142.54

Finding the Fourth Proportional to 1,204,138.39, 1,804,943.22 and 405,142.54

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Solution

The fourth proportional to 1,204,138.39, 1,804,943.22 and 405,142.54 is: 607,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,138.39 : 1,804,943.22 = 405,142.54 : x
  2. Step 2: Convert to fraction form
    1,204,138.39/1,804,943.22 = 405,142.54/x
  3. Step 3: Cross multiply
    1,204,138.39x = 1,804,943.22 × 405,142.54
  4. Step 4: Simplify right side
    1,204,138.39x = 731,259,284,206.08
  5. Step 5: Solve for x
    x = 731,259,284,206.08/1,204,138.39
  6. Step 6: Final answer
    x = 607,288.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.