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Finding the Fourth Proportional to 496,242.40, 744,363.60 and 259,657.60

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Solution

The fourth proportional to 496,242.40, 744,363.60 and 259,657.60 is: 389,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,242.40 : 744,363.60 = 259,657.60 : x
  2. Step 2: Convert to fraction form
    496,242.40/744,363.60 = 259,657.60/x
  3. Step 3: Cross multiply
    496,242.40x = 744,363.60 × 259,657.60
  4. Step 4: Simplify right side
    496,242.40x = 193,279,665,903.36
  5. Step 5: Solve for x
    x = 193,279,665,903.36/496,242.40
  6. Step 6: Final answer
    x = 389,486.40

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