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Finding the Third Proportional to 878,278 and 1,310,131

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Solution

The third proportional to 878,278 and 1,310,131 is: 1,954,327.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,278 : 1,310,131 = 1,310,131 : x
  2. Step 2: Convert to fraction form
    878,278/1,310,131 = 1,310,131/x
  3. Step 3: Cross multiply
    878,278x = 1,310,131 × 1,310,131
  4. Step 4: Simplify right side
    878,278x = 1,716,443,237,161
  5. Step 5: Solve for x
    x = 1,716,443,237,161/878,278
  6. Step 6: Final answer
    x = 1,954,327.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.