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Finding the Fourth Proportional to 438,589.56, 605,268.24 and 268,790.88

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Solution

The fourth proportional to 438,589.56, 605,268.24 and 268,790.88 is: 370,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,589.56 : 605,268.24 = 268,790.88 : x
  2. Step 2: Convert to fraction form
    438,589.56/605,268.24 = 268,790.88/x
  3. Step 3: Cross multiply
    438,589.56x = 605,268.24 × 268,790.88
  4. Step 4: Simplify right side
    438,589.56x = 162,690,582,865.65
  5. Step 5: Solve for x
    x = 162,690,582,865.65/438,589.56
  6. Step 6: Final answer
    x = 370,940.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.