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Finding the Fourth Proportional to 557,443.62, 768,848.36 and 385,647.48

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Solution

The fourth proportional to 557,443.62, 768,848.36 and 385,647.48 is: 531,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,443.62 : 768,848.36 = 385,647.48 : x
  2. Step 2: Convert to fraction form
    557,443.62/768,848.36 = 385,647.48/x
  3. Step 3: Cross multiply
    557,443.62x = 768,848.36 × 385,647.48
  4. Step 4: Simplify right side
    557,443.62x = 296,504,430,607.90
  5. Step 5: Solve for x
    x = 296,504,430,607.90/557,443.62
  6. Step 6: Final answer
    x = 531,900.30

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