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Finding the Fourth Proportional to 483.02, 666.18 and 389.74

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Solution

The fourth proportional to 483.02, 666.18 and 389.74 is: 537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.02 : 666.18 = 389.74 : x
  2. Step 2: Convert to fraction form
    483.02/666.18 = 389.74/x
  3. Step 3: Cross multiply
    483.02x = 666.18 × 389.74
  4. Step 4: Simplify right side
    483.02x = 259,636.99
  5. Step 5: Solve for x
    x = 259,636.99/483.02
  6. Step 6: Final answer
    x = 537.53

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