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Finding the Fourth Proportional to 479.72, 718.90 and 371

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Solution

The fourth proportional to 479.72, 718.90 and 371 is: 555.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.72 : 718.90 = 371 : x
  2. Step 2: Convert to fraction form
    479.72/718.90 = 371/x
  3. Step 3: Cross multiply
    479.72x = 718.90 × 371
  4. Step 4: Simplify right side
    479.72x = 266,711.90
  5. Step 5: Solve for x
    x = 266,711.90/479.72
  6. Step 6: Final answer
    x = 555.97

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