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Finding the Third Proportional to 292,361.50 and 629,840

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Solution

The third proportional to 292,361.50 and 629,840 is: 1,356,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,361.50 : 629,840 = 629,840 : x
  2. Step 2: Convert to fraction form
    292,361.50/629,840 = 629,840/x
  3. Step 3: Cross multiply
    292,361.50x = 629,840 × 629,840
  4. Step 4: Simplify right side
    292,361.50x = 396,698,425,600
  5. Step 5: Solve for x
    x = 396,698,425,600/292,361.50
  6. Step 6: Final answer
    x = 1,356,876.42

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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.