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Finding the Fourth Proportional to 490,673.35, 677,200.94 and 275,831.11

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Solution

The fourth proportional to 490,673.35, 677,200.94 and 275,831.11 is: 380,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,673.35 : 677,200.94 = 275,831.11 : x
  2. Step 2: Convert to fraction form
    490,673.35/677,200.94 = 275,831.11/x
  3. Step 3: Cross multiply
    490,673.35x = 677,200.94 × 275,831.11
  4. Step 4: Simplify right side
    490,673.35x = 186,793,086,973.24
  5. Step 5: Solve for x
    x = 186,793,086,973.24/490,673.35
  6. Step 6: Final answer
    x = 380,687.25

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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.