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Finding the Fourth Proportional to 656,810.79, 906,398.43 and 355,004.79

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Solution

The fourth proportional to 656,810.79, 906,398.43 and 355,004.79 is: 489,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,810.79 : 906,398.43 = 355,004.79 : x
  2. Step 2: Convert to fraction form
    656,810.79/906,398.43 = 355,004.79/x
  3. Step 3: Cross multiply
    656,810.79x = 906,398.43 × 355,004.79
  4. Step 4: Simplify right side
    656,810.79x = 321,775,784,298.48
  5. Step 5: Solve for x
    x = 321,775,784,298.48/656,810.79
  6. Step 6: Final answer
    x = 489,906.36

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