Home / 394,917.41-592,012.68-214,739.60

Finding the Fourth Proportional to 394,917.41, 592,012.68 and 214,739.60

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Solution

The fourth proportional to 394,917.41, 592,012.68 and 214,739.60 is: 321,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,917.41 : 592,012.68 = 214,739.60 : x
  2. Step 2: Convert to fraction form
    394,917.41/592,012.68 = 214,739.60/x
  3. Step 3: Cross multiply
    394,917.41x = 592,012.68 × 214,739.60
  4. Step 4: Simplify right side
    394,917.41x = 127,128,563,138.07
  5. Step 5: Solve for x
    x = 127,128,563,138.07/394,917.41
  6. Step 6: Final answer
    x = 321,911.78

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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.