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Finding the Third Proportional to 436,808 and 658,290

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Solution

The third proportional to 436,808 and 658,290 is: 992,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,808 : 658,290 = 658,290 : x
  2. Step 2: Convert to fraction form
    436,808/658,290 = 658,290/x
  3. Step 3: Cross multiply
    436,808x = 658,290 × 658,290
  4. Step 4: Simplify right side
    436,808x = 433,345,724,100
  5. Step 5: Solve for x
    x = 433,345,724,100/436,808
  6. Step 6: Final answer
    x = 992,073.69

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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.