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Finding the Fourth Proportional to 444,679.60, 667,456.80 and 220,293.40

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Solution

The fourth proportional to 444,679.60, 667,456.80 and 220,293.40 is: 330,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,679.60 : 667,456.80 = 220,293.40 : x
  2. Step 2: Convert to fraction form
    444,679.60/667,456.80 = 220,293.40/x
  3. Step 3: Cross multiply
    444,679.60x = 667,456.80 × 220,293.40
  4. Step 4: Simplify right side
    444,679.60x = 147,036,327,825.12
  5. Step 5: Solve for x
    x = 147,036,327,825.12/444,679.60
  6. Step 6: Final answer
    x = 330,656.79

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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.