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Finding the Third Proportional to 392,828.75 and 600,657.50

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Solution

The third proportional to 392,828.75 and 600,657.50 is: 918,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,828.75 : 600,657.50 = 600,657.50 : x
  2. Step 2: Convert to fraction form
    392,828.75/600,657.50 = 600,657.50/x
  3. Step 3: Cross multiply
    392,828.75x = 600,657.50 × 600,657.50
  4. Step 4: Simplify right side
    392,828.75x = 360,789,432,306.25
  5. Step 5: Solve for x
    x = 360,789,432,306.25/392,828.75
  6. Step 6: Final answer
    x = 918,439.48

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.