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Finding the Fourth Proportional to 456.46, 685.13 and 348.93

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Solution

The fourth proportional to 456.46, 685.13 and 348.93 is: 523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.46 : 685.13 = 348.93 : x
  2. Step 2: Convert to fraction form
    456.46/685.13 = 348.93/x
  3. Step 3: Cross multiply
    456.46x = 685.13 × 348.93
  4. Step 4: Simplify right side
    456.46x = 239,060.67
  5. Step 5: Solve for x
    x = 239,060.67/456.46
  6. Step 6: Final answer
    x = 523.73

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