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Finding the Fourth Proportional to 627,866.48, 941,778.56 and 272,880.54

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Solution

The fourth proportional to 627,866.48, 941,778.56 and 272,880.54 is: 409,311.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,866.48 : 941,778.56 = 272,880.54 : x
  2. Step 2: Convert to fraction form
    627,866.48/941,778.56 = 272,880.54/x
  3. Step 3: Cross multiply
    627,866.48x = 941,778.56 × 272,880.54
  4. Step 4: Simplify right side
    627,866.48x = 256,993,042,013.22
  5. Step 5: Solve for x
    x = 256,993,042,013.22/627,866.48
  6. Step 6: Final answer
    x = 409,311.61

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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.