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Finding the Third Proportional to 502 and 704.50

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Solution

The third proportional to 502 and 704.50 is: 988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    502 : 704.50 = 704.50 : x
  2. Step 2: Convert to fraction form
    502/704.50 = 704.50/x
  3. Step 3: Cross multiply
    502x = 704.50 × 704.50
  4. Step 4: Simplify right side
    502x = 496,320.25
  5. Step 5: Solve for x
    x = 496,320.25/502
  6. Step 6: Final answer
    x = 988.69

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.