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Finding the Fourth Proportional to 1,007,667, 1,511,505.97 and 259,713

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Solution

The fourth proportional to 1,007,667, 1,511,505.97 and 259,713 is: 389,570.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,667 : 1,511,505.97 = 259,713 : x
  2. Step 2: Convert to fraction form
    1,007,667/1,511,505.97 = 259,713/x
  3. Step 3: Cross multiply
    1,007,667x = 1,511,505.97 × 259,713
  4. Step 4: Simplify right side
    1,007,667x = 392,557,749,337.33
  5. Step 5: Solve for x
    x = 392,557,749,337.33/1,007,667
  6. Step 6: Final answer
    x = 389,570.91

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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.