Home / 993,816.40-1,489,995.60-394,481.20

Finding the Fourth Proportional to 993,816.40, 1,489,995.60 and 394,481.20

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Solution

The fourth proportional to 993,816.40, 1,489,995.60 and 394,481.20 is: 591,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,816.40 : 1,489,995.60 = 394,481.20 : x
  2. Step 2: Convert to fraction form
    993,816.40/1,489,995.60 = 394,481.20/x
  3. Step 3: Cross multiply
    993,816.40x = 1,489,995.60 × 394,481.20
  4. Step 4: Simplify right side
    993,816.40x = 587,775,252,282.72
  5. Step 5: Solve for x
    x = 587,775,252,282.72/993,816.40
  6. Step 6: Final answer
    x = 591,432.43

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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.