Home / 780,318.12-1,170,555.08-211,708.16

Finding the Fourth Proportional to 780,318.12, 1,170,555.08 and 211,708.16

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Solution

The fourth proportional to 780,318.12, 1,170,555.08 and 211,708.16 is: 317,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,318.12 : 1,170,555.08 = 211,708.16 : x
  2. Step 2: Convert to fraction form
    780,318.12/1,170,555.08 = 211,708.16/x
  3. Step 3: Cross multiply
    780,318.12x = 1,170,555.08 × 211,708.16
  4. Step 4: Simplify right side
    780,318.12x = 247,816,062,165.45
  5. Step 5: Solve for x
    x = 247,816,062,165.45/780,318.12
  6. Step 6: Final answer
    x = 317,583.38

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