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Finding the Fourth Proportional to 553,353.18, 763,655.81 and 338,425.75

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Solution

The fourth proportional to 553,353.18, 763,655.81 and 338,425.75 is: 467,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.18 : 763,655.81 = 338,425.75 : x
  2. Step 2: Convert to fraction form
    553,353.18/763,655.81 = 338,425.75/x
  3. Step 3: Cross multiply
    553,353.18x = 763,655.81 × 338,425.75
  4. Step 4: Simplify right side
    553,353.18x = 258,440,790,241.11
  5. Step 5: Solve for x
    x = 258,440,790,241.11/553,353.18
  6. Step 6: Final answer
    x = 467,044.92

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