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Finding the Third Proportional to 985,261 and 2,117,863

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Solution

The third proportional to 985,261 and 2,117,863 is: 4,552,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,261 : 2,117,863 = 2,117,863 : x
  2. Step 2: Convert to fraction form
    985,261/2,117,863 = 2,117,863/x
  3. Step 3: Cross multiply
    985,261x = 2,117,863 × 2,117,863
  4. Step 4: Simplify right side
    985,261x = 4,485,343,686,769
  5. Step 5: Solve for x
    x = 4,485,343,686,769/985,261
  6. Step 6: Final answer
    x = 4,552,442.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.