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Finding the Third Proportional to 276,879.75 and 651,915

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Solution

The third proportional to 276,879.75 and 651,915 is: 1,534,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,879.75 : 651,915 = 651,915 : x
  2. Step 2: Convert to fraction form
    276,879.75/651,915 = 651,915/x
  3. Step 3: Cross multiply
    276,879.75x = 651,915 × 651,915
  4. Step 4: Simplify right side
    276,879.75x = 424,993,167,225
  5. Step 5: Solve for x
    x = 424,993,167,225/276,879.75
  6. Step 6: Final answer
    x = 1,534,937.70

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.