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Finding the Fourth Proportional to 417,977.80, 576,985.89 and 282,195.64

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Solution

The fourth proportional to 417,977.80, 576,985.89 and 282,195.64 is: 389,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,977.80 : 576,985.89 = 282,195.64 : x
  2. Step 2: Convert to fraction form
    417,977.80/576,985.89 = 282,195.64/x
  3. Step 3: Cross multiply
    417,977.80x = 576,985.89 × 282,195.64
  4. Step 4: Simplify right side
    417,977.80x = 162,822,902,499.52
  5. Step 5: Solve for x
    x = 162,822,902,499.52/417,977.80
  6. Step 6: Final answer
    x = 389,549.16

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