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Finding the Third Proportional to 771,679.13 and 1,661,881.31

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Solution

The third proportional to 771,679.13 and 1,661,881.31 is: 3,579,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,679.13 : 1,661,881.31 = 1,661,881.31 : x
  2. Step 2: Convert to fraction form
    771,679.13/1,661,881.31 = 1,661,881.31/x
  3. Step 3: Cross multiply
    771,679.13x = 1,661,881.31 × 1,661,881.31
  4. Step 4: Simplify right side
    771,679.13x = 2,761,849,496,836.72
  5. Step 5: Solve for x
    x = 2,761,849,496,836.72/771,679.13
  6. Step 6: Final answer
    x = 3,579,012.84

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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.