Home / 442,824.80-664,237.20-419,496.80

Finding the Fourth Proportional to 442,824.80, 664,237.20 and 419,496.80

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Solution

The fourth proportional to 442,824.80, 664,237.20 and 419,496.80 is: 629,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,824.80 : 664,237.20 = 419,496.80 : x
  2. Step 2: Convert to fraction form
    442,824.80/664,237.20 = 419,496.80/x
  3. Step 3: Cross multiply
    442,824.80x = 664,237.20 × 419,496.80
  4. Step 4: Simplify right side
    442,824.80x = 278,645,379,840.96
  5. Step 5: Solve for x
    x = 278,645,379,840.96/442,824.80
  6. Step 6: Final answer
    x = 629,245.20

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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.