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Finding the Fourth Proportional to 627,912.92, 941,902.06 and 207,221.60

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Solution

The fourth proportional to 627,912.92, 941,902.06 and 207,221.60 is: 310,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,912.92 : 941,902.06 = 207,221.60 : x
  2. Step 2: Convert to fraction form
    627,912.92/941,902.06 = 207,221.60/x
  3. Step 3: Cross multiply
    627,912.92x = 941,902.06 × 207,221.60
  4. Step 4: Simplify right side
    627,912.92x = 195,182,451,916.50
  5. Step 5: Solve for x
    x = 195,182,451,916.50/627,912.92
  6. Step 6: Final answer
    x = 310,843.18

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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.