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Finding the Fourth Proportional to 553,886.21, 830,497.14 and 253,991.12

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Solution

The fourth proportional to 553,886.21, 830,497.14 and 253,991.12 is: 380,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,886.21 : 830,497.14 = 253,991.12 : x
  2. Step 2: Convert to fraction form
    553,886.21/830,497.14 = 253,991.12/x
  3. Step 3: Cross multiply
    553,886.21x = 830,497.14 × 253,991.12
  4. Step 4: Simplify right side
    553,886.21x = 210,938,898,745.40
  5. Step 5: Solve for x
    x = 210,938,898,745.40/553,886.21
  6. Step 6: Final answer
    x = 380,834.36

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