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Finding the Fourth Proportional to 498,700.80, 746,998.20 and 330,301.80

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Solution

The fourth proportional to 498,700.80, 746,998.20 and 330,301.80 is: 494,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,700.80 : 746,998.20 = 330,301.80 : x
  2. Step 2: Convert to fraction form
    498,700.80/746,998.20 = 330,301.80/x
  3. Step 3: Cross multiply
    498,700.80x = 746,998.20 × 330,301.80
  4. Step 4: Simplify right side
    498,700.80x = 246,734,850,056.76
  5. Step 5: Solve for x
    x = 246,734,850,056.76/498,700.80
  6. Step 6: Final answer
    x = 494,755.27

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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.