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Finding the Fourth Proportional to 628,936.80, 943,405.20 and 376,994.40

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Solution

The fourth proportional to 628,936.80, 943,405.20 and 376,994.40 is: 565,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,936.80 : 943,405.20 = 376,994.40 : x
  2. Step 2: Convert to fraction form
    628,936.80/943,405.20 = 376,994.40/x
  3. Step 3: Cross multiply
    628,936.80x = 943,405.20 × 376,994.40
  4. Step 4: Simplify right side
    628,936.80x = 355,658,477,330.88
  5. Step 5: Solve for x
    x = 355,658,477,330.88/628,936.80
  6. Step 6: Final answer
    x = 565,491.60

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