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Finding the Third Proportional to 335,740 and 721,174

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Solution

The third proportional to 335,740 and 721,174 is: 1,549,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,740 : 721,174 = 721,174 : x
  2. Step 2: Convert to fraction form
    335,740/721,174 = 721,174/x
  3. Step 3: Cross multiply
    335,740x = 721,174 × 721,174
  4. Step 4: Simplify right side
    335,740x = 520,091,938,276
  5. Step 5: Solve for x
    x = 520,091,938,276/335,740
  6. Step 6: Final answer
    x = 1,549,091.38

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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.