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Finding the Fourth Proportional to 576,090.40, 864,135.60 and 551,207.20

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Solution

The fourth proportional to 576,090.40, 864,135.60 and 551,207.20 is: 826,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,090.40 : 864,135.60 = 551,207.20 : x
  2. Step 2: Convert to fraction form
    576,090.40/864,135.60 = 551,207.20/x
  3. Step 3: Cross multiply
    576,090.40x = 864,135.60 × 551,207.20
  4. Step 4: Simplify right side
    576,090.40x = 476,317,764,496.32
  5. Step 5: Solve for x
    x = 476,317,764,496.32/576,090.40
  6. Step 6: Final answer
    x = 826,810.80

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