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Finding the Third Proportional to 279,478 and 603,236

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Solution

The third proportional to 279,478 and 603,236 is: 1,302,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,478 : 603,236 = 603,236 : x
  2. Step 2: Convert to fraction form
    279,478/603,236 = 603,236/x
  3. Step 3: Cross multiply
    279,478x = 603,236 × 603,236
  4. Step 4: Simplify right side
    279,478x = 363,893,671,696
  5. Step 5: Solve for x
    x = 363,893,671,696/279,478
  6. Step 6: Final answer
    x = 1,302,047.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.