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Finding the Fourth Proportional to 804,580.80, 1,207,551.60 and 331,605.60

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Solution

The fourth proportional to 804,580.80, 1,207,551.60 and 331,605.60 is: 497,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,580.80 : 1,207,551.60 = 331,605.60 : x
  2. Step 2: Convert to fraction form
    804,580.80/1,207,551.60 = 331,605.60/x
  3. Step 3: Cross multiply
    804,580.80x = 1,207,551.60 × 331,605.60
  4. Step 4: Simplify right side
    804,580.80x = 400,430,872,848.96
  5. Step 5: Solve for x
    x = 400,430,872,848.96/804,580.80
  6. Step 6: Final answer
    x = 497,688.82

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