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Finding the Fourth Proportional to 628,737.28, 867,657.54 and 342,259.54

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Solution

The fourth proportional to 628,737.28, 867,657.54 and 342,259.54 is: 472,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,737.28 : 867,657.54 = 342,259.54 : x
  2. Step 2: Convert to fraction form
    628,737.28/867,657.54 = 342,259.54/x
  3. Step 3: Cross multiply
    628,737.28x = 867,657.54 × 342,259.54
  4. Step 4: Simplify right side
    628,737.28x = 296,964,070,517.93
  5. Step 5: Solve for x
    x = 296,964,070,517.93/628,737.28
  6. Step 6: Final answer
    x = 472,318.22

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