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Finding the Fourth Proportional to 489,163.10, 733,744.65 and 419,179.10

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Solution

The fourth proportional to 489,163.10, 733,744.65 and 419,179.10 is: 628,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,163.10 : 733,744.65 = 419,179.10 : x
  2. Step 2: Convert to fraction form
    489,163.10/733,744.65 = 419,179.10/x
  3. Step 3: Cross multiply
    489,163.10x = 733,744.65 × 419,179.10
  4. Step 4: Simplify right side
    489,163.10x = 307,570,422,016.82
  5. Step 5: Solve for x
    x = 307,570,422,016.82/489,163.10
  6. Step 6: Final answer
    x = 628,768.65

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Similar ratio
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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.