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Finding the Fourth Proportional to 609.84, 841.59 and 347.85

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Solution

The fourth proportional to 609.84, 841.59 and 347.85 is: 480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.84 : 841.59 = 347.85 : x
  2. Step 2: Convert to fraction form
    609.84/841.59 = 347.85/x
  3. Step 3: Cross multiply
    609.84x = 841.59 × 347.85
  4. Step 4: Simplify right side
    609.84x = 292,747.08
  5. Step 5: Solve for x
    x = 292,747.08/609.84
  6. Step 6: Final answer
    x = 480.04

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