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Finding the Third Proportional to 338,868 and 730,221

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Solution

The third proportional to 338,868 and 730,221 is: 1,573,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,868 : 730,221 = 730,221 : x
  2. Step 2: Convert to fraction form
    338,868/730,221 = 730,221/x
  3. Step 3: Cross multiply
    338,868x = 730,221 × 730,221
  4. Step 4: Simplify right side
    338,868x = 533,222,708,841
  5. Step 5: Solve for x
    x = 533,222,708,841/338,868
  6. Step 6: Final answer
    x = 1,573,541.05

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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.