Home / 394,722.24-544,582.90-321,999.42

Finding the Fourth Proportional to 394,722.24, 544,582.90 and 321,999.42

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Solution

The fourth proportional to 394,722.24, 544,582.90 and 321,999.42 is: 444,250.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,722.24 : 544,582.90 = 321,999.42 : x
  2. Step 2: Convert to fraction form
    394,722.24/544,582.90 = 321,999.42/x
  3. Step 3: Cross multiply
    394,722.24x = 544,582.90 × 321,999.42
  4. Step 4: Simplify right side
    394,722.24x = 175,355,379,480.98
  5. Step 5: Solve for x
    x = 175,355,379,480.98/394,722.24
  6. Step 6: Final answer
    x = 444,250.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.