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Finding the Third Proportional to 301,579.50 and 663,129

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Solution

The third proportional to 301,579.50 and 663,129 is: 1,458,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,579.50 : 663,129 = 663,129 : x
  2. Step 2: Convert to fraction form
    301,579.50/663,129 = 663,129/x
  3. Step 3: Cross multiply
    301,579.50x = 663,129 × 663,129
  4. Step 4: Simplify right side
    301,579.50x = 439,740,070,641
  5. Step 5: Solve for x
    x = 439,740,070,641/301,579.50
  6. Step 6: Final answer
    x = 1,458,123.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.