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Finding the Third Proportional to 431,567.50 and 653,349

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Solution

The third proportional to 431,567.50 and 653,349 is: 989,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,567.50 : 653,349 = 653,349 : x
  2. Step 2: Convert to fraction form
    431,567.50/653,349 = 653,349/x
  3. Step 3: Cross multiply
    431,567.50x = 653,349 × 653,349
  4. Step 4: Simplify right side
    431,567.50x = 426,864,915,801
  5. Step 5: Solve for x
    x = 426,864,915,801/431,567.50
  6. Step 6: Final answer
    x = 989,103.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.