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Finding the Third Proportional to 315,584 and 681,712

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Solution

The third proportional to 315,584 and 681,712 is: 1,472,607.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,584 : 681,712 = 681,712 : x
  2. Step 2: Convert to fraction form
    315,584/681,712 = 681,712/x
  3. Step 3: Cross multiply
    315,584x = 681,712 × 681,712
  4. Step 4: Simplify right side
    315,584x = 464,731,250,944
  5. Step 5: Solve for x
    x = 464,731,250,944/315,584
  6. Step 6: Final answer
    x = 1,472,607.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.