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Finding the Third Proportional to 318,098 and 693,360

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Solution

The third proportional to 318,098 and 693,360 is: 1,511,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098 : 693,360 = 693,360 : x
  2. Step 2: Convert to fraction form
    318,098/693,360 = 693,360/x
  3. Step 3: Cross multiply
    318,098x = 693,360 × 693,360
  4. Step 4: Simplify right side
    318,098x = 480,748,089,600
  5. Step 5: Solve for x
    x = 480,748,089,600/318,098
  6. Step 6: Final answer
    x = 1,511,320.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.