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Finding the Third Proportional to 426,553.50 and 921,511.50

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Solution

The third proportional to 426,553.50 and 921,511.50 is: 1,990,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,553.50 : 921,511.50 = 921,511.50 : x
  2. Step 2: Convert to fraction form
    426,553.50/921,511.50 = 921,511.50/x
  3. Step 3: Cross multiply
    426,553.50x = 921,511.50 × 921,511.50
  4. Step 4: Simplify right side
    426,553.50x = 849,183,444,632.25
  5. Step 5: Solve for x
    x = 849,183,444,632.25/426,553.50
  6. Step 6: Final answer
    x = 1,990,801.73

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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.