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Finding the Third Proportional to 516,499 and 1,115,989

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Solution

The third proportional to 516,499 and 1,115,989 is: 2,411,294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,499 : 1,115,989 = 1,115,989 : x
  2. Step 2: Convert to fraction form
    516,499/1,115,989 = 1,115,989/x
  3. Step 3: Cross multiply
    516,499x = 1,115,989 × 1,115,989
  4. Step 4: Simplify right side
    516,499x = 1,245,431,448,121
  5. Step 5: Solve for x
    x = 1,245,431,448,121/516,499
  6. Step 6: Final answer
    x = 2,411,294.98

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.