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Finding the Fourth Proportional to 449,655.56, 620,813.94 and 288,580.04

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Solution

The fourth proportional to 449,655.56, 620,813.94 and 288,580.04 is: 398,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,655.56 : 620,813.94 = 288,580.04 : x
  2. Step 2: Convert to fraction form
    449,655.56/620,813.94 = 288,580.04/x
  3. Step 3: Cross multiply
    449,655.56x = 620,813.94 × 288,580.04
  4. Step 4: Simplify right side
    449,655.56x = 179,154,511,637.76
  5. Step 5: Solve for x
    x = 179,154,511,637.76/449,655.56
  6. Step 6: Final answer
    x = 398,426.10

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