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Finding the Third Proportional to 284,932 and 439,734

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Solution

The third proportional to 284,932 and 439,734 is: 678,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,932 : 439,734 = 439,734 : x
  2. Step 2: Convert to fraction form
    284,932/439,734 = 439,734/x
  3. Step 3: Cross multiply
    284,932x = 439,734 × 439,734
  4. Step 4: Simplify right side
    284,932x = 193,365,990,756
  5. Step 5: Solve for x
    x = 193,365,990,756/284,932
  6. Step 6: Final answer
    x = 678,639.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.