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Finding the Fourth Proportional to 685,006.08, 1,027,512 and 448,546.56

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Solution

The fourth proportional to 685,006.08, 1,027,512 and 448,546.56 is: 672,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,006.08 : 1,027,512 = 448,546.56 : x
  2. Step 2: Convert to fraction form
    685,006.08/1,027,512 = 448,546.56/x
  3. Step 3: Cross multiply
    685,006.08x = 1,027,512 × 448,546.56
  4. Step 4: Simplify right side
    685,006.08x = 460,886,972,958.72
  5. Step 5: Solve for x
    x = 460,886,972,958.72/685,006.08
  6. Step 6: Final answer
    x = 672,821.73

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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.