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Finding the Third Proportional to 640,462.50 and 1,379,893.50

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Solution

The third proportional to 640,462.50 and 1,379,893.50 is: 2,973,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,462.50 : 1,379,893.50 = 1,379,893.50 : x
  2. Step 2: Convert to fraction form
    640,462.50/1,379,893.50 = 1,379,893.50/x
  3. Step 3: Cross multiply
    640,462.50x = 1,379,893.50 × 1,379,893.50
  4. Step 4: Simplify right side
    640,462.50x = 1,904,106,071,342.25
  5. Step 5: Solve for x
    x = 1,904,106,071,342.25/640,462.50
  6. Step 6: Final answer
    x = 2,973,017.27

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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.