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Finding the Fourth Proportional to 672,221.43, 927,665.66 and 366,297.86

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Solution

The fourth proportional to 672,221.43, 927,665.66 and 366,297.86 is: 505,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,221.43 : 927,665.66 = 366,297.86 : x
  2. Step 2: Convert to fraction form
    672,221.43/927,665.66 = 366,297.86/x
  3. Step 3: Cross multiply
    672,221.43x = 927,665.66 × 366,297.86
  4. Step 4: Simplify right side
    672,221.43x = 339,801,949,288.40
  5. Step 5: Solve for x
    x = 339,801,949,288.40/672,221.43
  6. Step 6: Final answer
    x = 505,491.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.