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Finding the Fourth Proportional to 452,787.60, 679,181.40 and 405,548.40

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Solution

The fourth proportional to 452,787.60, 679,181.40 and 405,548.40 is: 608,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,787.60 : 679,181.40 = 405,548.40 : x
  2. Step 2: Convert to fraction form
    452,787.60/679,181.40 = 405,548.40/x
  3. Step 3: Cross multiply
    452,787.60x = 679,181.40 × 405,548.40
  4. Step 4: Simplify right side
    452,787.60x = 275,440,930,079.76
  5. Step 5: Solve for x
    x = 275,440,930,079.76/452,787.60
  6. Step 6: Final answer
    x = 608,322.60

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