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Finding the Fourth Proportional to 617,916.40, 926,874.60 and 551,431.60

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Solution

The fourth proportional to 617,916.40, 926,874.60 and 551,431.60 is: 827,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,916.40 : 926,874.60 = 551,431.60 : x
  2. Step 2: Convert to fraction form
    617,916.40/926,874.60 = 551,431.60/x
  3. Step 3: Cross multiply
    617,916.40x = 926,874.60 × 551,431.60
  4. Step 4: Simplify right side
    617,916.40x = 511,107,943,677.36
  5. Step 5: Solve for x
    x = 511,107,943,677.36/617,916.40
  6. Step 6: Final answer
    x = 827,147.40

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