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Finding the Third Proportional to 318,941 and 433,339

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Solution

The third proportional to 318,941 and 433,339 is: 588,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,941 : 433,339 = 433,339 : x
  2. Step 2: Convert to fraction form
    318,941/433,339 = 433,339/x
  3. Step 3: Cross multiply
    318,941x = 433,339 × 433,339
  4. Step 4: Simplify right side
    318,941x = 187,782,688,921
  5. Step 5: Solve for x
    x = 187,782,688,921/318,941
  6. Step 6: Final answer
    x = 588,769.36

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.