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Finding the Fourth Proportional to 490,673.48, 677,201.11 and 275,831.24

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Solution

The fourth proportional to 490,673.48, 677,201.11 and 275,831.24 is: 380,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,673.48 : 677,201.11 = 275,831.24 : x
  2. Step 2: Convert to fraction form
    490,673.48/677,201.11 = 275,831.24/x
  3. Step 3: Cross multiply
    490,673.48x = 677,201.11 × 275,831.24
  4. Step 4: Simplify right side
    490,673.48x = 186,793,217,825.09
  5. Step 5: Solve for x
    x = 186,793,217,825.09/490,673.48
  6. Step 6: Final answer
    x = 380,687.42

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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.