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Finding the Fourth Proportional to 721,571.56, 1,082,345.82 and 248,261

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Solution

The fourth proportional to 721,571.56, 1,082,345.82 and 248,261 is: 372,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,571.56 : 1,082,345.82 = 248,261 : x
  2. Step 2: Convert to fraction form
    721,571.56/1,082,345.82 = 248,261/x
  3. Step 3: Cross multiply
    721,571.56x = 1,082,345.82 × 248,261
  4. Step 4: Simplify right side
    721,571.56x = 268,704,255,619.02
  5. Step 5: Solve for x
    x = 268,704,255,619.02/721,571.56
  6. Step 6: Final answer
    x = 372,387.54

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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.