Home / 764,166.20-1,146,249.30-445,301.60

Finding the Fourth Proportional to 764,166.20, 1,146,249.30 and 445,301.60

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Solution

The fourth proportional to 764,166.20, 1,146,249.30 and 445,301.60 is: 667,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,166.20 : 1,146,249.30 = 445,301.60 : x
  2. Step 2: Convert to fraction form
    764,166.20/1,146,249.30 = 445,301.60/x
  3. Step 3: Cross multiply
    764,166.20x = 1,146,249.30 × 445,301.60
  4. Step 4: Simplify right side
    764,166.20x = 510,426,647,288.88
  5. Step 5: Solve for x
    x = 510,426,647,288.88/764,166.20
  6. Step 6: Final answer
    x = 667,952.40

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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.