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Finding the Third Proportional to 340,430 and 538,805

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Solution

The third proportional to 340,430 and 538,805 is: 852,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,430 : 538,805 = 538,805 : x
  2. Step 2: Convert to fraction form
    340,430/538,805 = 538,805/x
  3. Step 3: Cross multiply
    340,430x = 538,805 × 538,805
  4. Step 4: Simplify right side
    340,430x = 290,310,828,025
  5. Step 5: Solve for x
    x = 290,310,828,025/340,430
  6. Step 6: Final answer
    x = 852,776.86

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.