Home / 443,217.09-664,196.38-341,631.21

Finding the Fourth Proportional to 443,217.09, 664,196.38 and 341,631.21

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Solution

The fourth proportional to 443,217.09, 664,196.38 and 341,631.21 is: 511,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,217.09 : 664,196.38 = 341,631.21 : x
  2. Step 2: Convert to fraction form
    443,217.09/664,196.38 = 341,631.21/x
  3. Step 3: Cross multiply
    443,217.09x = 664,196.38 × 341,631.21
  4. Step 4: Simplify right side
    443,217.09x = 226,910,212,977.02
  5. Step 5: Solve for x
    x = 226,910,212,977.02/443,217.09
  6. Step 6: Final answer
    x = 511,961.79

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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.