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Finding the Fourth Proportional to 657,445.98, 985,769.82 and 257,607.69

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Solution

The fourth proportional to 657,445.98, 985,769.82 and 257,607.69 is: 386,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,445.98 : 985,769.82 = 257,607.69 : x
  2. Step 2: Convert to fraction form
    657,445.98/985,769.82 = 257,607.69/x
  3. Step 3: Cross multiply
    657,445.98x = 985,769.82 × 257,607.69
  4. Step 4: Simplify right side
    657,445.98x = 253,941,886,201.92
  5. Step 5: Solve for x
    x = 253,941,886,201.92/657,445.98
  6. Step 6: Final answer
    x = 386,255.14

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