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Finding the Fourth Proportional to 654,203.20, 980,527.20 and 275,123.20

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Solution

The fourth proportional to 654,203.20, 980,527.20 and 275,123.20 is: 412,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,203.20 : 980,527.20 = 275,123.20 : x
  2. Step 2: Convert to fraction form
    654,203.20/980,527.20 = 275,123.20/x
  3. Step 3: Cross multiply
    654,203.20x = 980,527.20 × 275,123.20
  4. Step 4: Simplify right side
    654,203.20x = 269,765,780,951.04
  5. Step 5: Solve for x
    x = 269,765,780,951.04/654,203.20
  6. Step 6: Final answer
    x = 412,357.78

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1.5x scale

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.