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Finding the Fourth Proportional to 448,940.40, 674,188.20 and 238,988.40

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Solution

The fourth proportional to 448,940.40, 674,188.20 and 238,988.40 is: 358,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,940.40 : 674,188.20 = 238,988.40 : x
  2. Step 2: Convert to fraction form
    448,940.40/674,188.20 = 238,988.40/x
  3. Step 3: Cross multiply
    448,940.40x = 674,188.20 × 238,988.40
  4. Step 4: Simplify right side
    448,940.40x = 161,123,159,216.88
  5. Step 5: Solve for x
    x = 161,123,159,216.88/448,940.40
  6. Step 6: Final answer
    x = 358,896.55

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