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Finding the Third Proportional to 420,266.25 and 899,581.50

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Solution

The third proportional to 420,266.25 and 899,581.50 is: 1,925,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,266.25 : 899,581.50 = 899,581.50 : x
  2. Step 2: Convert to fraction form
    420,266.25/899,581.50 = 899,581.50/x
  3. Step 3: Cross multiply
    420,266.25x = 899,581.50 × 899,581.50
  4. Step 4: Simplify right side
    420,266.25x = 809,246,875,142.25
  5. Step 5: Solve for x
    x = 809,246,875,142.25/420,266.25
  6. Step 6: Final answer
    x = 1,925,557.61

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.