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Finding the Third Proportional to 312,963 and 470,944.50

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Solution

The third proportional to 312,963 and 470,944.50 is: 708,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,963 : 470,944.50 = 470,944.50 : x
  2. Step 2: Convert to fraction form
    312,963/470,944.50 = 470,944.50/x
  3. Step 3: Cross multiply
    312,963x = 470,944.50 × 470,944.50
  4. Step 4: Simplify right side
    312,963x = 221,788,722,080.25
  5. Step 5: Solve for x
    x = 221,788,722,080.25/312,963
  6. Step 6: Final answer
    x = 708,673.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.