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Finding the Fourth Proportional to 608,309.18, 839,187.65 and 393,518.51

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Solution

The fourth proportional to 608,309.18, 839,187.65 and 393,518.51 is: 542,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,309.18 : 839,187.65 = 393,518.51 : x
  2. Step 2: Convert to fraction form
    608,309.18/839,187.65 = 393,518.51/x
  3. Step 3: Cross multiply
    608,309.18x = 839,187.65 × 393,518.51
  4. Step 4: Simplify right side
    608,309.18x = 330,235,871,670.81
  5. Step 5: Solve for x
    x = 330,235,871,670.81/608,309.18
  6. Step 6: Final answer
    x = 542,875.04

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