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Finding the Third Proportional to 336,246 and 721,308

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Solution

The third proportional to 336,246 and 721,308 is: 1,547,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,246 : 721,308 = 721,308 : x
  2. Step 2: Convert to fraction form
    336,246/721,308 = 721,308/x
  3. Step 3: Cross multiply
    336,246x = 721,308 × 721,308
  4. Step 4: Simplify right side
    336,246x = 520,285,230,864
  5. Step 5: Solve for x
    x = 520,285,230,864/336,246
  6. Step 6: Final answer
    x = 1,547,335.08

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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.