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Finding the Third Proportional to 521,548.88 and 789,638.63

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Solution

The third proportional to 521,548.88 and 789,638.63 is: 1,195,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,548.88 : 789,638.63 = 789,638.63 : x
  2. Step 2: Convert to fraction form
    521,548.88/789,638.63 = 789,638.63/x
  3. Step 3: Cross multiply
    521,548.88x = 789,638.63 × 789,638.63
  4. Step 4: Simplify right side
    521,548.88x = 623,529,158,091.89
  5. Step 5: Solve for x
    x = 623,529,158,091.89/521,548.88
  6. Step 6: Final answer
    x = 1,195,533.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.