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Finding the Third Proportional to 818,745 and 1,240,839

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Solution

The third proportional to 818,745 and 1,240,839 is: 1,880,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,745 : 1,240,839 = 1,240,839 : x
  2. Step 2: Convert to fraction form
    818,745/1,240,839 = 1,240,839/x
  3. Step 3: Cross multiply
    818,745x = 1,240,839 × 1,240,839
  4. Step 4: Simplify right side
    818,745x = 1,539,681,423,921
  5. Step 5: Solve for x
    x = 1,539,681,423,921/818,745
  6. Step 6: Final answer
    x = 1,880,538.41

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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.