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Finding the Third Proportional to 896,963 and 1,390,278

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Solution

The third proportional to 896,963 and 1,390,278 is: 2,154,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,963 : 1,390,278 = 1,390,278 : x
  2. Step 2: Convert to fraction form
    896,963/1,390,278 = 1,390,278/x
  3. Step 3: Cross multiply
    896,963x = 1,390,278 × 1,390,278
  4. Step 4: Simplify right side
    896,963x = 1,932,872,917,284
  5. Step 5: Solve for x
    x = 1,932,872,917,284/896,963
  6. Step 6: Final answer
    x = 2,154,908.19

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.