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Finding the Fourth Proportional to 449,568.72, 620,469.81 and 268,288.29

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Solution

The fourth proportional to 449,568.72, 620,469.81 and 268,288.29 is: 370,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,568.72 : 620,469.81 = 268,288.29 : x
  2. Step 2: Convert to fraction form
    449,568.72/620,469.81 = 268,288.29/x
  3. Step 3: Cross multiply
    449,568.72x = 620,469.81 × 268,288.29
  4. Step 4: Simplify right side
    449,568.72x = 166,464,784,321.53
  5. Step 5: Solve for x
    x = 166,464,784,321.53/449,568.72
  6. Step 6: Final answer
    x = 370,276.62

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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.