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Finding the Third Proportional to 620,640 and 885,882

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Solution

The third proportional to 620,640 and 885,882 is: 1,264,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,640 : 885,882 = 885,882 : x
  2. Step 2: Convert to fraction form
    620,640/885,882 = 885,882/x
  3. Step 3: Cross multiply
    620,640x = 885,882 × 885,882
  4. Step 4: Simplify right side
    620,640x = 784,786,917,924
  5. Step 5: Solve for x
    x = 784,786,917,924/620,640
  6. Step 6: Final answer
    x = 1,264,480.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.