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Finding the Third Proportional to 561,124 and 847,518

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Solution

The third proportional to 561,124 and 847,518 is: 1,280,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,124 : 847,518 = 847,518 : x
  2. Step 2: Convert to fraction form
    561,124/847,518 = 847,518/x
  3. Step 3: Cross multiply
    561,124x = 847,518 × 847,518
  4. Step 4: Simplify right side
    561,124x = 718,286,760,324
  5. Step 5: Solve for x
    x = 718,286,760,324/561,124
  6. Step 6: Final answer
    x = 1,280,085.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.