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Finding the Fourth Proportional to 809,773.62, 1,214,546.22 and 445,148.88

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Solution

The fourth proportional to 809,773.62, 1,214,546.22 and 445,148.88 is: 667,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,773.62 : 1,214,546.22 = 445,148.88 : x
  2. Step 2: Convert to fraction form
    809,773.62/1,214,546.22 = 445,148.88/x
  3. Step 3: Cross multiply
    809,773.62x = 1,214,546.22 × 445,148.88
  4. Step 4: Simplify right side
    809,773.62x = 540,653,889,541.23
  5. Step 5: Solve for x
    x = 540,653,889,541.23/809,773.62
  6. Step 6: Final answer
    x = 667,660.54

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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.