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Finding the Third Proportional to 839,895 and 1,292,718

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Solution

The third proportional to 839,895 and 1,292,718 is: 1,989,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,895 : 1,292,718 = 1,292,718 : x
  2. Step 2: Convert to fraction form
    839,895/1,292,718 = 1,292,718/x
  3. Step 3: Cross multiply
    839,895x = 1,292,718 × 1,292,718
  4. Step 4: Simplify right side
    839,895x = 1,671,119,827,524
  5. Step 5: Solve for x
    x = 1,671,119,827,524/839,895
  6. Step 6: Final answer
    x = 1,989,677.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.