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Finding the Third Proportional to 432,439.50 and 659,320.50

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Solution

The third proportional to 432,439.50 and 659,320.50 is: 1,005,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,439.50 : 659,320.50 = 659,320.50 : x
  2. Step 2: Convert to fraction form
    432,439.50/659,320.50 = 659,320.50/x
  3. Step 3: Cross multiply
    432,439.50x = 659,320.50 × 659,320.50
  4. Step 4: Simplify right side
    432,439.50x = 434,703,521,720.25
  5. Step 5: Solve for x
    x = 434,703,521,720.25/432,439.50
  6. Step 6: Final answer
    x = 1,005,235.46

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.