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Finding the Fourth Proportional to 446,361.15, 669,578.15 and 209,574.66

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Solution

The fourth proportional to 446,361.15, 669,578.15 and 209,574.66 is: 314,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,361.15 : 669,578.15 = 209,574.66 : x
  2. Step 2: Convert to fraction form
    446,361.15/669,578.15 = 209,574.66/x
  3. Step 3: Cross multiply
    446,361.15x = 669,578.15 × 209,574.66
  4. Step 4: Simplify right side
    446,361.15x = 140,326,612,081.81
  5. Step 5: Solve for x
    x = 140,326,612,081.81/446,361.15
  6. Step 6: Final answer
    x = 314,379.09

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