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Finding the Third Proportional to 426,427.50 and 919,282.50

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Solution

The third proportional to 426,427.50 and 919,282.50 is: 1,981,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,427.50 : 919,282.50 = 919,282.50 : x
  2. Step 2: Convert to fraction form
    426,427.50/919,282.50 = 919,282.50/x
  3. Step 3: Cross multiply
    426,427.50x = 919,282.50 × 919,282.50
  4. Step 4: Simplify right side
    426,427.50x = 845,080,314,806.25
  5. Step 5: Solve for x
    x = 845,080,314,806.25/426,427.50
  6. Step 6: Final answer
    x = 1,981,767.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.