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Finding the Third Proportional to 412,876.50 and 581,424.75

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Solution

The third proportional to 412,876.50 and 581,424.75 is: 818,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,876.50 : 581,424.75 = 581,424.75 : x
  2. Step 2: Convert to fraction form
    412,876.50/581,424.75 = 581,424.75/x
  3. Step 3: Cross multiply
    412,876.50x = 581,424.75 × 581,424.75
  4. Step 4: Simplify right side
    412,876.50x = 338,054,739,912.56
  5. Step 5: Solve for x
    x = 338,054,739,912.56/412,876.50
  6. Step 6: Final answer
    x = 818,779.32

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.