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Finding the Third Proportional to 280,042 and 614,518

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Solution

The third proportional to 280,042 and 614,518 is: 1,348,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,042 : 614,518 = 614,518 : x
  2. Step 2: Convert to fraction form
    280,042/614,518 = 614,518/x
  3. Step 3: Cross multiply
    280,042x = 614,518 × 614,518
  4. Step 4: Simplify right side
    280,042x = 377,632,372,324
  5. Step 5: Solve for x
    x = 377,632,372,324/280,042
  6. Step 6: Final answer
    x = 1,348,484.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.