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Finding the Fourth Proportional to 494,573.20, 741,859.80 and 489,324.40

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Solution

The fourth proportional to 494,573.20, 741,859.80 and 489,324.40 is: 733,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,573.20 : 741,859.80 = 489,324.40 : x
  2. Step 2: Convert to fraction form
    494,573.20/741,859.80 = 489,324.40/x
  3. Step 3: Cross multiply
    494,573.20x = 741,859.80 × 489,324.40
  4. Step 4: Simplify right side
    494,573.20x = 363,010,101,519.12
  5. Step 5: Solve for x
    x = 363,010,101,519.12/494,573.20
  6. Step 6: Final answer
    x = 733,986.60

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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.