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Finding the Fourth Proportional to 409,619.80, 614,429.70 and 376,442.20

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Solution

The fourth proportional to 409,619.80, 614,429.70 and 376,442.20 is: 564,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,619.80 : 614,429.70 = 376,442.20 : x
  2. Step 2: Convert to fraction form
    409,619.80/614,429.70 = 376,442.20/x
  3. Step 3: Cross multiply
    409,619.80x = 614,429.70 × 376,442.20
  4. Step 4: Simplify right side
    409,619.80x = 231,297,268,013.34
  5. Step 5: Solve for x
    x = 231,297,268,013.34/409,619.80
  6. Step 6: Final answer
    x = 564,663.30

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