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Finding the Third Proportional to 455,220 and 994,518

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Solution

The third proportional to 455,220 and 994,518 is: 2,172,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,220 : 994,518 = 994,518 : x
  2. Step 2: Convert to fraction form
    455,220/994,518 = 994,518/x
  3. Step 3: Cross multiply
    455,220x = 994,518 × 994,518
  4. Step 4: Simplify right side
    455,220x = 989,066,052,324
  5. Step 5: Solve for x
    x = 989,066,052,324/455,220
  6. Step 6: Final answer
    x = 2,172,721.00

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.