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Finding the Fourth Proportional to 498,469.80, 746,651.70 and 330,070.80

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Solution

The fourth proportional to 498,469.80, 746,651.70 and 330,070.80 is: 494,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,469.80 : 746,651.70 = 330,070.80 : x
  2. Step 2: Convert to fraction form
    498,469.80/746,651.70 = 330,070.80/x
  3. Step 3: Cross multiply
    498,469.80x = 746,651.70 × 330,070.80
  4. Step 4: Simplify right side
    498,469.80x = 246,447,923,940.36
  5. Step 5: Solve for x
    x = 246,447,923,940.36/498,469.80
  6. Step 6: Final answer
    x = 494,408.94

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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.