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Finding the Fourth Proportional to 449,689.73, 620,579.48 and 268,366.47

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Solution

The fourth proportional to 449,689.73, 620,579.48 and 268,366.47 is: 370,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,689.73 : 620,579.48 = 268,366.47 : x
  2. Step 2: Convert to fraction form
    449,689.73/620,579.48 = 268,366.47/x
  3. Step 3: Cross multiply
    449,689.73x = 620,579.48 × 268,366.47
  4. Step 4: Simplify right side
    449,689.73x = 166,542,720,733.03
  5. Step 5: Solve for x
    x = 166,542,720,733.03/449,689.73
  6. Step 6: Final answer
    x = 370,350.29

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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.