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Finding the Third Proportional to 399,496.50 and 858,285

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Solution

The third proportional to 399,496.50 and 858,285 is: 1,843,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,496.50 : 858,285 = 858,285 : x
  2. Step 2: Convert to fraction form
    399,496.50/858,285 = 858,285/x
  3. Step 3: Cross multiply
    399,496.50x = 858,285 × 858,285
  4. Step 4: Simplify right side
    399,496.50x = 736,653,141,225
  5. Step 5: Solve for x
    x = 736,653,141,225/399,496.50
  6. Step 6: Final answer
    x = 1,843,953.93

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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.