Home / 403,422.12-605,223.09-122,961.24

Finding the Fourth Proportional to 403,422.12, 605,223.09 and 122,961.24

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Solution

The fourth proportional to 403,422.12, 605,223.09 and 122,961.24 is: 184,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,422.12 : 605,223.09 = 122,961.24 : x
  2. Step 2: Convert to fraction form
    403,422.12/605,223.09 = 122,961.24/x
  3. Step 3: Cross multiply
    403,422.12x = 605,223.09 × 122,961.24
  4. Step 4: Simplify right side
    403,422.12x = 74,418,981,623.03
  5. Step 5: Solve for x
    x = 74,418,981,623.03/403,422.12
  6. Step 6: Final answer
    x = 184,469.26

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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.