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Finding the Third Proportional to 343,584 and 513,789

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Solution

The third proportional to 343,584 and 513,789 is: 768,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,584 : 513,789 = 513,789 : x
  2. Step 2: Convert to fraction form
    343,584/513,789 = 513,789/x
  3. Step 3: Cross multiply
    343,584x = 513,789 × 513,789
  4. Step 4: Simplify right side
    343,584x = 263,979,136,521
  5. Step 5: Solve for x
    x = 263,979,136,521/343,584
  6. Step 6: Final answer
    x = 768,310.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.