Home / 490,016.95-676,176.33-275,107.75

Finding the Fourth Proportional to 490,016.95, 676,176.33 and 275,107.75

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Solution

The fourth proportional to 490,016.95, 676,176.33 and 275,107.75 is: 379,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,016.95 : 676,176.33 = 275,107.75 : x
  2. Step 2: Convert to fraction form
    490,016.95/676,176.33 = 275,107.75/x
  3. Step 3: Cross multiply
    490,016.95x = 676,176.33 × 275,107.75
  4. Step 4: Simplify right side
    490,016.95x = 186,021,348,749.56
  5. Step 5: Solve for x
    x = 186,021,348,749.56/490,016.95
  6. Step 6: Final answer
    x = 379,622.27

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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.