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Finding the Third Proportional to 398,646 and 605,346

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Solution

The third proportional to 398,646 and 605,346 is: 919,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,646 : 605,346 = 605,346 : x
  2. Step 2: Convert to fraction form
    398,646/605,346 = 605,346/x
  3. Step 3: Cross multiply
    398,646x = 605,346 × 605,346
  4. Step 4: Simplify right side
    398,646x = 366,443,779,716
  5. Step 5: Solve for x
    x = 366,443,779,716/398,646
  6. Step 6: Final answer
    x = 919,221.01

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.