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Finding the Fourth Proportional to 346,771.60, 520,157.40 and 323,443.60

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Solution

The fourth proportional to 346,771.60, 520,157.40 and 323,443.60 is: 485,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,771.60 : 520,157.40 = 323,443.60 : x
  2. Step 2: Convert to fraction form
    346,771.60/520,157.40 = 323,443.60/x
  3. Step 3: Cross multiply
    346,771.60x = 520,157.40 × 323,443.60
  4. Step 4: Simplify right side
    346,771.60x = 168,241,582,022.64
  5. Step 5: Solve for x
    x = 168,241,582,022.64/346,771.60
  6. Step 6: Final answer
    x = 485,165.40

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