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Finding the Third Proportional to 439,713 and 659,281.50

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Solution

The third proportional to 439,713 and 659,281.50 is: 988,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,713 : 659,281.50 = 659,281.50 : x
  2. Step 2: Convert to fraction form
    439,713/659,281.50 = 659,281.50/x
  3. Step 3: Cross multiply
    439,713x = 659,281.50 × 659,281.50
  4. Step 4: Simplify right side
    439,713x = 434,652,096,242.25
  5. Step 5: Solve for x
    x = 434,652,096,242.25/439,713
  6. Step 6: Final answer
    x = 988,490.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.