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Finding the Third Proportional to 298,026 and 646,511

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Solution

The third proportional to 298,026 and 646,511 is: 1,402,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,026 : 646,511 = 646,511 : x
  2. Step 2: Convert to fraction form
    298,026/646,511 = 646,511/x
  3. Step 3: Cross multiply
    298,026x = 646,511 × 646,511
  4. Step 4: Simplify right side
    298,026x = 417,976,473,121
  5. Step 5: Solve for x
    x = 417,976,473,121/298,026
  6. Step 6: Final answer
    x = 1,402,483.25

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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.