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Finding the Fourth Proportional to 654, 979.78 and 470.94

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Solution

The fourth proportional to 654, 979.78 and 470.94 is: 705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    654 : 979.78 = 470.94 : x
  2. Step 2: Convert to fraction form
    654/979.78 = 470.94/x
  3. Step 3: Cross multiply
    654x = 979.78 × 470.94
  4. Step 4: Simplify right side
    654x = 461,417.59
  5. Step 5: Solve for x
    x = 461,417.59/654
  6. Step 6: Final answer
    x = 705.53

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