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Finding the Fourth Proportional to 1,298.92, 1,948.46 and 325.03

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Solution

The fourth proportional to 1,298.92, 1,948.46 and 325.03 is: 487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.92 : 1,948.46 = 325.03 : x
  2. Step 2: Convert to fraction form
    1,298.92/1,948.46 = 325.03/x
  3. Step 3: Cross multiply
    1,298.92x = 1,948.46 × 325.03
  4. Step 4: Simplify right side
    1,298.92x = 633,307.95
  5. Step 5: Solve for x
    x = 633,307.95/1,298.92
  6. Step 6: Final answer
    x = 487.57

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