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Finding the Fourth Proportional to 378,384.36, 567,945.90 and 312,495.72

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Solution

The fourth proportional to 378,384.36, 567,945.90 and 312,495.72 is: 469,048.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,384.36 : 567,945.90 = 312,495.72 : x
  2. Step 2: Convert to fraction form
    378,384.36/567,945.90 = 312,495.72/x
  3. Step 3: Cross multiply
    378,384.36x = 567,945.90 × 312,495.72
  4. Step 4: Simplify right side
    378,384.36x = 177,480,662,941.55
  5. Step 5: Solve for x
    x = 177,480,662,941.55/378,384.36
  6. Step 6: Final answer
    x = 469,048.62

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