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Finding the Fourth Proportional to 489,015.70, 733,523.55 and 329,583.40

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Solution

The fourth proportional to 489,015.70, 733,523.55 and 329,583.40 is: 494,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,015.70 : 733,523.55 = 329,583.40 : x
  2. Step 2: Convert to fraction form
    489,015.70/733,523.55 = 329,583.40/x
  3. Step 3: Cross multiply
    489,015.70x = 733,523.55 × 329,583.40
  4. Step 4: Simplify right side
    489,015.70x = 241,757,185,589.07
  5. Step 5: Solve for x
    x = 241,757,185,589.07/489,015.70
  6. Step 6: Final answer
    x = 494,375.10

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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.