Home / 279,756.36-419,718.06-263,046.60

Finding the Fourth Proportional to 279,756.36, 419,718.06 and 263,046.60

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Solution

The fourth proportional to 279,756.36, 419,718.06 and 263,046.60 is: 394,648.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,756.36 : 419,718.06 = 263,046.60 : x
  2. Step 2: Convert to fraction form
    279,756.36/419,718.06 = 263,046.60/x
  3. Step 3: Cross multiply
    279,756.36x = 419,718.06 × 263,046.60
  4. Step 4: Simplify right side
    279,756.36x = 110,405,408,641.60
  5. Step 5: Solve for x
    x = 110,405,408,641.60/279,756.36
  6. Step 6: Final answer
    x = 394,648.43

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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.