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Finding the Fourth Proportional to 652.65, 978.97 and 574.89

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Solution

The fourth proportional to 652.65, 978.97 and 574.89 is: 862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.65 : 978.97 = 574.89 : x
  2. Step 2: Convert to fraction form
    652.65/978.97 = 574.89/x
  3. Step 3: Cross multiply
    652.65x = 978.97 × 574.89
  4. Step 4: Simplify right side
    652.65x = 562,800.06
  5. Step 5: Solve for x
    x = 562,800.06/652.65
  6. Step 6: Final answer
    x = 862.33

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