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Finding the Fourth Proportional to 455,343.46, 628,370.57 and 251,394.34

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Solution

The fourth proportional to 455,343.46, 628,370.57 and 251,394.34 is: 346,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,343.46 : 628,370.57 = 251,394.34 : x
  2. Step 2: Convert to fraction form
    455,343.46/628,370.57 = 251,394.34/x
  3. Step 3: Cross multiply
    455,343.46x = 628,370.57 × 251,394.34
  4. Step 4: Simplify right side
    455,343.46x = 157,968,804,720.57
  5. Step 5: Solve for x
    x = 157,968,804,720.57/455,343.46
  6. Step 6: Final answer
    x = 346,922.31

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