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Finding the Third Proportional to 511,440 and 802,305

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Solution

The third proportional to 511,440 and 802,305 is: 1,258,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,440 : 802,305 = 802,305 : x
  2. Step 2: Convert to fraction form
    511,440/802,305 = 802,305/x
  3. Step 3: Cross multiply
    511,440x = 802,305 × 802,305
  4. Step 4: Simplify right side
    511,440x = 643,693,313,025
  5. Step 5: Solve for x
    x = 643,693,313,025/511,440
  6. Step 6: Final answer
    x = 1,258,590.08

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.