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Finding the Third Proportional to 434,508 and 636,207

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Solution

The third proportional to 434,508 and 636,207 is: 931,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,508 : 636,207 = 636,207 : x
  2. Step 2: Convert to fraction form
    434,508/636,207 = 636,207/x
  3. Step 3: Cross multiply
    434,508x = 636,207 × 636,207
  4. Step 4: Simplify right side
    434,508x = 404,759,346,849
  5. Step 5: Solve for x
    x = 404,759,346,849/434,508
  6. Step 6: Final answer
    x = 931,534.86

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.