Home / 361,905.80-541,821.90-320,433.80

Finding the Fourth Proportional to 361,905.80, 541,821.90 and 320,433.80

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Solution

The fourth proportional to 361,905.80, 541,821.90 and 320,433.80 is: 479,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,905.80 : 541,821.90 = 320,433.80 : x
  2. Step 2: Convert to fraction form
    361,905.80/541,821.90 = 320,433.80/x
  3. Step 3: Cross multiply
    361,905.80x = 541,821.90 × 320,433.80
  4. Step 4: Simplify right side
    361,905.80x = 173,618,050,340.22
  5. Step 5: Solve for x
    x = 173,618,050,340.22/361,905.80
  6. Step 6: Final answer
    x = 479,732.71

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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.