Home / 419,723.04-629,770.48-219,995.96

Finding the Fourth Proportional to 419,723.04, 629,770.48 and 219,995.96

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Solution

The fourth proportional to 419,723.04, 629,770.48 and 219,995.96 is: 330,091.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,723.04 : 629,770.48 = 219,995.96 : x
  2. Step 2: Convert to fraction form
    419,723.04/629,770.48 = 219,995.96/x
  3. Step 3: Cross multiply
    419,723.04x = 629,770.48 × 219,995.96
  4. Step 4: Simplify right side
    419,723.04x = 138,546,961,327.26
  5. Step 5: Solve for x
    x = 138,546,961,327.26/419,723.04
  6. Step 6: Final answer
    x = 330,091.39

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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.