Home / 445,519.40-667,112.70-326,546.60

Finding the Fourth Proportional to 445,519.40, 667,112.70 and 326,546.60

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Solution

The fourth proportional to 445,519.40, 667,112.70 and 326,546.60 is: 488,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,519.40 : 667,112.70 = 326,546.60 : x
  2. Step 2: Convert to fraction form
    445,519.40/667,112.70 = 326,546.60/x
  3. Step 3: Cross multiply
    445,519.40x = 667,112.70 × 326,546.60
  4. Step 4: Simplify right side
    445,519.40x = 217,843,384,001.82
  5. Step 5: Solve for x
    x = 217,843,384,001.82/445,519.40
  6. Step 6: Final answer
    x = 488,964.98

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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.