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Finding the Third Proportional to 367,468 and 787,421

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Solution

The third proportional to 367,468 and 787,421 is: 1,687,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,468 : 787,421 = 787,421 : x
  2. Step 2: Convert to fraction form
    367,468/787,421 = 787,421/x
  3. Step 3: Cross multiply
    367,468x = 787,421 × 787,421
  4. Step 4: Simplify right side
    367,468x = 620,031,831,241
  5. Step 5: Solve for x
    x = 620,031,831,241/367,468
  6. Step 6: Final answer
    x = 1,687,308.37

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.