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Finding the Third Proportional to 313,320 and 662,358

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Solution

The third proportional to 313,320 and 662,358 is: 1,400,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,320 : 662,358 = 662,358 : x
  2. Step 2: Convert to fraction form
    313,320/662,358 = 662,358/x
  3. Step 3: Cross multiply
    313,320x = 662,358 × 662,358
  4. Step 4: Simplify right side
    313,320x = 438,718,120,164
  5. Step 5: Solve for x
    x = 438,718,120,164/313,320
  6. Step 6: Final answer
    x = 1,400,223.80

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.