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Finding the Fourth Proportional to 780,481.98, 1,170,801 and 211,872.24

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Solution

The fourth proportional to 780,481.98, 1,170,801 and 211,872.24 is: 317,829.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,481.98 : 1,170,801 = 211,872.24 : x
  2. Step 2: Convert to fraction form
    780,481.98/1,170,801 = 211,872.24/x
  3. Step 3: Cross multiply
    780,481.98x = 1,170,801 × 211,872.24
  4. Step 4: Simplify right side
    780,481.98x = 248,060,230,464.24
  5. Step 5: Solve for x
    x = 248,060,230,464.24/780,481.98
  6. Step 6: Final answer
    x = 317,829.54

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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.