Home / 800,873.25-1,105,190.31-438,289.83

Finding the Fourth Proportional to 800,873.25, 1,105,190.31 and 438,289.83

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Solution

The fourth proportional to 800,873.25, 1,105,190.31 and 438,289.83 is: 604,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,873.25 : 1,105,190.31 = 438,289.83 : x
  2. Step 2: Convert to fraction form
    800,873.25/1,105,190.31 = 438,289.83/x
  3. Step 3: Cross multiply
    800,873.25x = 1,105,190.31 × 438,289.83
  4. Step 4: Simplify right side
    800,873.25x = 484,393,673,087.55
  5. Step 5: Solve for x
    x = 484,393,673,087.55/800,873.25
  6. Step 6: Final answer
    x = 604,831.88

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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.