Home / 764,422.60-1,146,288.30-343,481.80

Finding the Fourth Proportional to 764,422.60, 1,146,288.30 and 343,481.80

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Solution

The fourth proportional to 764,422.60, 1,146,288.30 and 343,481.80 is: 515,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,422.60 : 1,146,288.30 = 343,481.80 : x
  2. Step 2: Convert to fraction form
    764,422.60/1,146,288.30 = 343,481.80/x
  3. Step 3: Cross multiply
    764,422.60x = 1,146,288.30 × 343,481.80
  4. Step 4: Simplify right side
    764,422.60x = 393,729,168,602.94
  5. Step 5: Solve for x
    x = 393,729,168,602.94/764,422.60
  6. Step 6: Final answer
    x = 515,067.41

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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.