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Finding the Fourth Proportional to 422,021.18, 582,435.69 and 269,064.92

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Solution

The fourth proportional to 422,021.18, 582,435.69 and 269,064.92 is: 371,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,021.18 : 582,435.69 = 269,064.92 : x
  2. Step 2: Convert to fraction form
    422,021.18/582,435.69 = 269,064.92/x
  3. Step 3: Cross multiply
    422,021.18x = 582,435.69 × 269,064.92
  4. Step 4: Simplify right side
    422,021.18x = 156,713,012,335.00
  5. Step 5: Solve for x
    x = 156,713,012,335.00/422,021.18
  6. Step 6: Final answer
    x = 371,339.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.