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Finding the Third Proportional to 381,453.75 and 558,492.75

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Solution

The third proportional to 381,453.75 and 558,492.75 is: 817,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,453.75 : 558,492.75 = 558,492.75 : x
  2. Step 2: Convert to fraction form
    381,453.75/558,492.75 = 558,492.75/x
  3. Step 3: Cross multiply
    381,453.75x = 558,492.75 × 558,492.75
  4. Step 4: Simplify right side
    381,453.75x = 311,914,151,802.56
  5. Step 5: Solve for x
    x = 311,914,151,802.56/381,453.75
  6. Step 6: Final answer
    x = 817,698.48

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.