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Finding the Fourth Proportional to 808,977, 1,116,388.26 and 451,281

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Solution

The fourth proportional to 808,977, 1,116,388.26 and 451,281 is: 622,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,977 : 1,116,388.26 = 451,281 : x
  2. Step 2: Convert to fraction form
    808,977/1,116,388.26 = 451,281/x
  3. Step 3: Cross multiply
    808,977x = 1,116,388.26 × 451,281
  4. Step 4: Simplify right side
    808,977x = 503,804,810,361.06
  5. Step 5: Solve for x
    x = 503,804,810,361.06/808,977
  6. Step 6: Final answer
    x = 622,767.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.