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Finding the Third Proportional to 312,312 and 694,488

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Solution

The third proportional to 312,312 and 694,488 is: 1,544,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,312 : 694,488 = 694,488 : x
  2. Step 2: Convert to fraction form
    312,312/694,488 = 694,488/x
  3. Step 3: Cross multiply
    312,312x = 694,488 × 694,488
  4. Step 4: Simplify right side
    312,312x = 482,313,582,144
  5. Step 5: Solve for x
    x = 482,313,582,144/312,312
  6. Step 6: Final answer
    x = 1,544,332.53

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.