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Finding the Third Proportional to 396,616.50 and 578,314.50

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Solution

The third proportional to 396,616.50 and 578,314.50 is: 843,252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,616.50 : 578,314.50 = 578,314.50 : x
  2. Step 2: Convert to fraction form
    396,616.50/578,314.50 = 578,314.50/x
  3. Step 3: Cross multiply
    396,616.50x = 578,314.50 × 578,314.50
  4. Step 4: Simplify right side
    396,616.50x = 334,447,660,910.25
  5. Step 5: Solve for x
    x = 334,447,660,910.25/396,616.50
  6. Step 6: Final answer
    x = 843,252.01

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.