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Finding the Third Proportional to 426,172.50 and 918,764.50

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Solution

The third proportional to 426,172.50 and 918,764.50 is: 1,980,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,172.50 : 918,764.50 = 918,764.50 : x
  2. Step 2: Convert to fraction form
    426,172.50/918,764.50 = 918,764.50/x
  3. Step 3: Cross multiply
    426,172.50x = 918,764.50 × 918,764.50
  4. Step 4: Simplify right side
    426,172.50x = 844,128,206,460.25
  5. Step 5: Solve for x
    x = 844,128,206,460.25/426,172.50
  6. Step 6: Final answer
    x = 1,980,719.56

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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.