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Finding the Third Proportional to 351,809 and 545,090

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Solution

The third proportional to 351,809 and 545,090 is: 844,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,809 : 545,090 = 545,090 : x
  2. Step 2: Convert to fraction form
    351,809/545,090 = 545,090/x
  3. Step 3: Cross multiply
    351,809x = 545,090 × 545,090
  4. Step 4: Simplify right side
    351,809x = 297,123,108,100
  5. Step 5: Solve for x
    x = 297,123,108,100/351,809
  6. Step 6: Final answer
    x = 844,558.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.