Home / 819,615.24-1,229,422.86-220,577.70

Finding the Fourth Proportional to 819,615.24, 1,229,422.86 and 220,577.70

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Solution

The fourth proportional to 819,615.24, 1,229,422.86 and 220,577.70 is: 330,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,615.24 : 1,229,422.86 = 220,577.70 : x
  2. Step 2: Convert to fraction form
    819,615.24/1,229,422.86 = 220,577.70/x
  3. Step 3: Cross multiply
    819,615.24x = 1,229,422.86 × 220,577.70
  4. Step 4: Simplify right side
    819,615.24x = 271,183,266,786.22
  5. Step 5: Solve for x
    x = 271,183,266,786.22/819,615.24
  6. Step 6: Final answer
    x = 330,866.55

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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.