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Finding the Third Proportional to 340,896 and 511,128

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Solution

The third proportional to 340,896 and 511,128 is: 766,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,896 : 511,128 = 511,128 : x
  2. Step 2: Convert to fraction form
    340,896/511,128 = 511,128/x
  3. Step 3: Cross multiply
    340,896x = 511,128 × 511,128
  4. Step 4: Simplify right side
    340,896x = 261,251,832,384
  5. Step 5: Solve for x
    x = 261,251,832,384/340,896
  6. Step 6: Final answer
    x = 766,368.14

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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.