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Finding the Fourth Proportional to 664,087.05, 996,609.29 and 264,496.64

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Solution

The fourth proportional to 664,087.05, 996,609.29 and 264,496.64 is: 396,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,087.05 : 996,609.29 = 264,496.64 : x
  2. Step 2: Convert to fraction form
    664,087.05/996,609.29 = 264,496.64/x
  3. Step 3: Cross multiply
    664,087.05x = 996,609.29 × 264,496.64
  4. Step 4: Simplify right side
    664,087.05x = 263,599,802,292.26
  5. Step 5: Solve for x
    x = 263,599,802,292.26/664,087.05
  6. Step 6: Final answer
    x = 396,935.62

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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.