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Finding the Fourth Proportional to 542,278.40, 748,388.97 and 300,636.77

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Solution

The fourth proportional to 542,278.40, 748,388.97 and 300,636.77 is: 414,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,278.40 : 748,388.97 = 300,636.77 : x
  2. Step 2: Convert to fraction form
    542,278.40/748,388.97 = 300,636.77/x
  3. Step 3: Cross multiply
    542,278.40x = 748,388.97 × 300,636.77
  4. Step 4: Simplify right side
    542,278.40x = 224,993,238,902.48
  5. Step 5: Solve for x
    x = 224,993,238,902.48/542,278.40
  6. Step 6: Final answer
    x = 414,903.56

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