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Finding the Third Proportional to 321,360 and 657,462

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Solution

The third proportional to 321,360 and 657,462 is: 1,345,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,360 : 657,462 = 657,462 : x
  2. Step 2: Convert to fraction form
    321,360/657,462 = 657,462/x
  3. Step 3: Cross multiply
    321,360x = 657,462 × 657,462
  4. Step 4: Simplify right side
    321,360x = 432,256,281,444
  5. Step 5: Solve for x
    x = 432,256,281,444/321,360
  6. Step 6: Final answer
    x = 1,345,084.27

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.