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Finding the Fourth Proportional to 667,602, 1,001,560.50 and 218,321.10

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Solution

The fourth proportional to 667,602, 1,001,560.50 and 218,321.10 is: 327,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,602 : 1,001,560.50 = 218,321.10 : x
  2. Step 2: Convert to fraction form
    667,602/1,001,560.50 = 218,321.10/x
  3. Step 3: Cross multiply
    667,602x = 1,001,560.50 × 218,321.10
  4. Step 4: Simplify right side
    667,602x = 218,661,790,076.55
  5. Step 5: Solve for x
    x = 218,661,790,076.55/667,602
  6. Step 6: Final answer
    x = 327,533.16

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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.