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Finding the Fourth Proportional to 659,447.73, 987,633.32 and 481,513.41

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Solution

The fourth proportional to 659,447.73, 987,633.32 and 481,513.41 is: 721,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,447.73 : 987,633.32 = 481,513.41 : x
  2. Step 2: Convert to fraction form
    659,447.73/987,633.32 = 481,513.41/x
  3. Step 3: Cross multiply
    659,447.73x = 987,633.32 × 481,513.41
  4. Step 4: Simplify right side
    659,447.73x = 475,558,685,335.25
  5. Step 5: Solve for x
    x = 475,558,685,335.25/659,447.73
  6. Step 6: Final answer
    x = 721,146.90

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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.