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Finding the Third Proportional to 421,488 and 902,232

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Solution

The third proportional to 421,488 and 902,232 is: 1,931,306.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,488 : 902,232 = 902,232 : x
  2. Step 2: Convert to fraction form
    421,488/902,232 = 902,232/x
  3. Step 3: Cross multiply
    421,488x = 902,232 × 902,232
  4. Step 4: Simplify right side
    421,488x = 814,022,581,824
  5. Step 5: Solve for x
    x = 814,022,581,824/421,488
  6. Step 6: Final answer
    x = 1,931,306.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.