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Finding the Third Proportional to 618,431.63 and 1,342,615.50

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Solution

The third proportional to 618,431.63 and 1,342,615.50 is: 2,914,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,431.63 : 1,342,615.50 = 1,342,615.50 : x
  2. Step 2: Convert to fraction form
    618,431.63/1,342,615.50 = 1,342,615.50/x
  3. Step 3: Cross multiply
    618,431.63x = 1,342,615.50 × 1,342,615.50
  4. Step 4: Simplify right side
    618,431.63x = 1,802,616,380,840.25
  5. Step 5: Solve for x
    x = 1,802,616,380,840.25/618,431.63
  6. Step 6: Final answer
    x = 2,914,819.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.