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Finding the Third Proportional to 818,449.50 and 1,238,992

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Solution

The third proportional to 818,449.50 and 1,238,992 is: 1,875,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,449.50 : 1,238,992 = 1,238,992 : x
  2. Step 2: Convert to fraction form
    818,449.50/1,238,992 = 1,238,992/x
  3. Step 3: Cross multiply
    818,449.50x = 1,238,992 × 1,238,992
  4. Step 4: Simplify right side
    818,449.50x = 1,535,101,176,064
  5. Step 5: Solve for x
    x = 1,535,101,176,064/818,449.50
  6. Step 6: Final answer
    x = 1,875,621.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.