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Finding the Fourth Proportional to 422,376.40, 582,879.40 and 252,610.52

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Solution

The fourth proportional to 422,376.40, 582,879.40 and 252,610.52 is: 348,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,376.40 : 582,879.40 = 252,610.52 : x
  2. Step 2: Convert to fraction form
    422,376.40/582,879.40 = 252,610.52/x
  3. Step 3: Cross multiply
    422,376.40x = 582,879.40 × 252,610.52
  4. Step 4: Simplify right side
    422,376.40x = 147,241,468,331.29
  5. Step 5: Solve for x
    x = 147,241,468,331.29/422,376.40
  6. Step 6: Final answer
    x = 348,602.50

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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.