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Finding the Fourth Proportional to 618,761.26, 927,879.44 and 219,502.54

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Solution

The fourth proportional to 618,761.26, 927,879.44 and 219,502.54 is: 329,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,761.26 : 927,879.44 = 219,502.54 : x
  2. Step 2: Convert to fraction form
    618,761.26/927,879.44 = 219,502.54/x
  3. Step 3: Cross multiply
    618,761.26x = 927,879.44 × 219,502.54
  4. Step 4: Simplify right side
    618,761.26x = 203,671,893,893.78
  5. Step 5: Solve for x
    x = 203,671,893,893.78/618,761.26
  6. Step 6: Final answer
    x = 329,160.71

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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.