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Finding the Fourth Proportional to 442,907.20, 664,360.80 and 307,604.80

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Solution

The fourth proportional to 442,907.20, 664,360.80 and 307,604.80 is: 461,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,907.20 : 664,360.80 = 307,604.80 : x
  2. Step 2: Convert to fraction form
    442,907.20/664,360.80 = 307,604.80/x
  3. Step 3: Cross multiply
    442,907.20x = 664,360.80 × 307,604.80
  4. Step 4: Simplify right side
    442,907.20x = 204,360,571,011.84
  5. Step 5: Solve for x
    x = 204,360,571,011.84/442,907.20
  6. Step 6: Final answer
    x = 461,407.20

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