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Finding the Third Proportional to 289,224 and 622,856.25

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Solution

The third proportional to 289,224 and 622,856.25 is: 1,341,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,224 : 622,856.25 = 622,856.25 : x
  2. Step 2: Convert to fraction form
    289,224/622,856.25 = 622,856.25/x
  3. Step 3: Cross multiply
    289,224x = 622,856.25 × 622,856.25
  4. Step 4: Simplify right side
    289,224x = 387,949,908,164.06
  5. Step 5: Solve for x
    x = 387,949,908,164.06/289,224
  6. Step 6: Final answer
    x = 1,341,347.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.