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Finding the Third Proportional to 290,582 and 615,788

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Solution

The third proportional to 290,582 and 615,788 is: 1,304,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,582 : 615,788 = 615,788 : x
  2. Step 2: Convert to fraction form
    290,582/615,788 = 615,788/x
  3. Step 3: Cross multiply
    290,582x = 615,788 × 615,788
  4. Step 4: Simplify right side
    290,582x = 379,194,860,944
  5. Step 5: Solve for x
    x = 379,194,860,944/290,582
  6. Step 6: Final answer
    x = 1,304,949.59

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.