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Finding the Third Proportional to 579,069 and 921,091.50

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Solution

The third proportional to 579,069 and 921,091.50 is: 1,465,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,069 : 921,091.50 = 921,091.50 : x
  2. Step 2: Convert to fraction form
    579,069/921,091.50 = 921,091.50/x
  3. Step 3: Cross multiply
    579,069x = 921,091.50 × 921,091.50
  4. Step 4: Simplify right side
    579,069x = 848,409,551,372.25
  5. Step 5: Solve for x
    x = 848,409,551,372.25/579,069
  6. Step 6: Final answer
    x = 1,465,126.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.