Home / 1,204,138.73-1,804,943.75-405,142.90

Finding the Fourth Proportional to 1,204,138.73, 1,804,943.75 and 405,142.90

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Solution

The fourth proportional to 1,204,138.73, 1,804,943.75 and 405,142.90 is: 607,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,138.73 : 1,804,943.75 = 405,142.90 : x
  2. Step 2: Convert to fraction form
    1,204,138.73/1,804,943.75 = 405,142.90/x
  3. Step 3: Cross multiply
    1,204,138.73x = 1,804,943.75 × 405,142.90
  4. Step 4: Simplify right side
    1,204,138.73x = 731,260,138,673.80
  5. Step 5: Solve for x
    x = 731,260,138,673.80/1,204,138.73
  6. Step 6: Final answer
    x = 607,288.94

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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.