Home / 279,374.04-419,074.89-79,723.84

Finding the Fourth Proportional to 279,374.04, 419,074.89 and 79,723.84

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Solution

The fourth proportional to 279,374.04, 419,074.89 and 79,723.84 is: 119,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,374.04 : 419,074.89 = 79,723.84 : x
  2. Step 2: Convert to fraction form
    279,374.04/419,074.89 = 79,723.84/x
  3. Step 3: Cross multiply
    279,374.04x = 419,074.89 × 79,723.84
  4. Step 4: Simplify right side
    279,374.04x = 33,410,259,478.38
  5. Step 5: Solve for x
    x = 33,410,259,478.38/279,374.04
  6. Step 6: Final answer
    x = 119,589.71

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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.