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Finding the Third Proportional to 818,999 and 1,239,955

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Solution

The third proportional to 818,999 and 1,239,955 is: 1,877,277.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,999 : 1,239,955 = 1,239,955 : x
  2. Step 2: Convert to fraction form
    818,999/1,239,955 = 1,239,955/x
  3. Step 3: Cross multiply
    818,999x = 1,239,955 × 1,239,955
  4. Step 4: Simplify right side
    818,999x = 1,537,488,402,025
  5. Step 5: Solve for x
    x = 1,537,488,402,025/818,999
  6. Step 6: Final answer
    x = 1,877,277.51

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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.