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Finding the Fourth Proportional to 430,956.78, 646,218.87 and 251,100.33

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Solution

The fourth proportional to 430,956.78, 646,218.87 and 251,100.33 is: 376,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,956.78 : 646,218.87 = 251,100.33 : x
  2. Step 2: Convert to fraction form
    430,956.78/646,218.87 = 251,100.33/x
  3. Step 3: Cross multiply
    430,956.78x = 646,218.87 × 251,100.33
  4. Step 4: Simplify right side
    430,956.78x = 162,265,771,509.23
  5. Step 5: Solve for x
    x = 162,265,771,509.23/430,956.78
  6. Step 6: Final answer
    x = 376,524.47

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