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Finding the Third Proportional to 385,650 and 830,493

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Solution

The third proportional to 385,650 and 830,493 is: 1,788,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,650 : 830,493 = 830,493 : x
  2. Step 2: Convert to fraction form
    385,650/830,493 = 830,493/x
  3. Step 3: Cross multiply
    385,650x = 830,493 × 830,493
  4. Step 4: Simplify right side
    385,650x = 689,718,623,049
  5. Step 5: Solve for x
    x = 689,718,623,049/385,650
  6. Step 6: Final answer
    x = 1,788,457.47

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.