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Finding the Fourth Proportional to 627,622.94, 940,903.86 and 272,369.90

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Solution

The fourth proportional to 627,622.94, 940,903.86 and 272,369.90 is: 408,324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,622.94 : 940,903.86 = 272,369.90 : x
  2. Step 2: Convert to fraction form
    627,622.94/940,903.86 = 272,369.90/x
  3. Step 3: Cross multiply
    627,622.94x = 940,903.86 × 272,369.90
  4. Step 4: Simplify right side
    627,622.94x = 256,273,890,257.81
  5. Step 5: Solve for x
    x = 256,273,890,257.81/627,622.94
  6. Step 6: Final answer
    x = 408,324.61

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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.