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Finding the Fourth Proportional to 687,296.49, 948,423.59 and 381,353.48

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Solution

The fourth proportional to 687,296.49, 948,423.59 and 381,353.48 is: 526,242.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,296.49 : 948,423.59 = 381,353.48 : x
  2. Step 2: Convert to fraction form
    687,296.49/948,423.59 = 381,353.48/x
  3. Step 3: Cross multiply
    687,296.49x = 948,423.59 × 381,353.48
  4. Step 4: Simplify right side
    687,296.49x = 361,684,629,911.71
  5. Step 5: Solve for x
    x = 361,684,629,911.71/687,296.49
  6. Step 6: Final answer
    x = 526,242.51

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