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Finding the Fourth Proportional to 667,993.72, 1,001,976 and 162,556.96

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Solution

The fourth proportional to 667,993.72, 1,001,976 and 162,556.96 is: 243,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,993.72 : 1,001,976 = 162,556.96 : x
  2. Step 2: Convert to fraction form
    667,993.72/1,001,976 = 162,556.96/x
  3. Step 3: Cross multiply
    667,993.72x = 1,001,976 × 162,556.96
  4. Step 4: Simplify right side
    667,993.72x = 162,878,172,552.96
  5. Step 5: Solve for x
    x = 162,878,172,552.96/667,993.72
  6. Step 6: Final answer
    x = 243,831.89

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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.