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Finding the Third Proportional to 343,620 and 710,811

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Solution

The third proportional to 343,620 and 710,811 is: 1,470,380.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,620 : 710,811 = 710,811 : x
  2. Step 2: Convert to fraction form
    343,620/710,811 = 710,811/x
  3. Step 3: Cross multiply
    343,620x = 710,811 × 710,811
  4. Step 4: Simplify right side
    343,620x = 505,252,277,721
  5. Step 5: Solve for x
    x = 505,252,277,721/343,620
  6. Step 6: Final answer
    x = 1,470,380.88

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.