Home / 819,627.24-1,229,440.86-220,589.76

Finding the Fourth Proportional to 819,627.24, 1,229,440.86 and 220,589.76

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Solution

The fourth proportional to 819,627.24, 1,229,440.86 and 220,589.76 is: 330,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,627.24 : 1,229,440.86 = 220,589.76 : x
  2. Step 2: Convert to fraction form
    819,627.24/1,229,440.86 = 220,589.76/x
  3. Step 3: Cross multiply
    819,627.24x = 1,229,440.86 × 220,589.76
  4. Step 4: Simplify right side
    819,627.24x = 271,202,064,241.59
  5. Step 5: Solve for x
    x = 271,202,064,241.59/819,627.24
  6. Step 6: Final answer
    x = 330,884.64

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Double scale
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Similar ratio
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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.