Home / 394,608.02-591,917.50-128,369.94

Finding the Fourth Proportional to 394,608.02, 591,917.50 and 128,369.94

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Solution

The fourth proportional to 394,608.02, 591,917.50 and 128,369.94 is: 192,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,608.02 : 591,917.50 = 128,369.94 : x
  2. Step 2: Convert to fraction form
    394,608.02/591,917.50 = 128,369.94/x
  3. Step 3: Cross multiply
    394,608.02x = 591,917.50 × 128,369.94
  4. Step 4: Simplify right side
    394,608.02x = 75,984,413,959.95
  5. Step 5: Solve for x
    x = 75,984,413,959.95/394,608.02
  6. Step 6: Final answer
    x = 192,556.69

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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.