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Finding the Fourth Proportional to 657,043.63, 985,672.05 and 257,467.79

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Solution

The fourth proportional to 657,043.63, 985,672.05 and 257,467.79 is: 386,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,043.63 : 985,672.05 = 257,467.79 : x
  2. Step 2: Convert to fraction form
    657,043.63/985,672.05 = 257,467.79/x
  3. Step 3: Cross multiply
    657,043.63x = 985,672.05 × 257,467.79
  4. Step 4: Simplify right side
    657,043.63x = 253,778,804,378.27
  5. Step 5: Solve for x
    x = 253,778,804,378.27/657,043.63
  6. Step 6: Final answer
    x = 386,243.46

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