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Finding the Fourth Proportional to 441,807.67, 662,698.32 and 121,979.07

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Solution

The fourth proportional to 441,807.67, 662,698.32 and 121,979.07 is: 182,964.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,807.67 : 662,698.32 = 121,979.07 : x
  2. Step 2: Convert to fraction form
    441,807.67/662,698.32 = 121,979.07/x
  3. Step 3: Cross multiply
    441,807.67x = 662,698.32 × 121,979.07
  4. Step 4: Simplify right side
    441,807.67x = 80,835,324,764.16
  5. Step 5: Solve for x
    x = 80,835,324,764.16/441,807.67
  6. Step 6: Final answer
    x = 182,964.96

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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.