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Finding the Third Proportional to 399,359.25 and 859,612.50

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Solution

The third proportional to 399,359.25 and 859,612.50 is: 1,850,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,359.25 : 859,612.50 = 859,612.50 : x
  2. Step 2: Convert to fraction form
    399,359.25/859,612.50 = 859,612.50/x
  3. Step 3: Cross multiply
    399,359.25x = 859,612.50 × 859,612.50
  4. Step 4: Simplify right side
    399,359.25x = 738,933,650,156.25
  5. Step 5: Solve for x
    x = 738,933,650,156.25/399,359.25
  6. Step 6: Final answer
    x = 1,850,298.07

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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.