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Finding the Fourth Proportional to 422,376.90, 582,880.08 and 252,611

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Solution

The fourth proportional to 422,376.90, 582,880.08 and 252,611 is: 348,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,376.90 : 582,880.08 = 252,611 : x
  2. Step 2: Convert to fraction form
    422,376.90/582,880.08 = 252,611/x
  3. Step 3: Cross multiply
    422,376.90x = 582,880.08 × 252,611
  4. Step 4: Simplify right side
    422,376.90x = 147,241,919,888.88
  5. Step 5: Solve for x
    x = 147,241,919,888.88/422,376.90
  6. Step 6: Final answer
    x = 348,603.15

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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.