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Finding the Third Proportional to 445,440 and 971,278

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Solution

The third proportional to 445,440 and 971,278 is: 2,117,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,440 : 971,278 = 971,278 : x
  2. Step 2: Convert to fraction form
    445,440/971,278 = 971,278/x
  3. Step 3: Cross multiply
    445,440x = 971,278 × 971,278
  4. Step 4: Simplify right side
    445,440x = 943,380,953,284
  5. Step 5: Solve for x
    x = 943,380,953,284/445,440
  6. Step 6: Final answer
    x = 2,117,863.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.