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Finding the Fourth Proportional to 644,667, 966,999.44 and 171,352.38

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Solution

The fourth proportional to 644,667, 966,999.44 and 171,352.38 is: 257,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,667 : 966,999.44 = 171,352.38 : x
  2. Step 2: Convert to fraction form
    644,667/966,999.44 = 171,352.38/x
  3. Step 3: Cross multiply
    644,667x = 966,999.44 × 171,352.38
  4. Step 4: Simplify right side
    644,667x = 165,697,655,502.67
  5. Step 5: Solve for x
    x = 165,697,655,502.67/644,667
  6. Step 6: Final answer
    x = 257,028.29

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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.