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Finding the Fourth Proportional to 460,866.80, 691,332.60 and 261,282.80

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Solution

The fourth proportional to 460,866.80, 691,332.60 and 261,282.80 is: 391,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,866.80 : 691,332.60 = 261,282.80 : x
  2. Step 2: Convert to fraction form
    460,866.80/691,332.60 = 261,282.80/x
  3. Step 3: Cross multiply
    460,866.80x = 691,332.60 × 261,282.80
  4. Step 4: Simplify right side
    460,866.80x = 180,633,317,459.28
  5. Step 5: Solve for x
    x = 180,633,317,459.28/460,866.80
  6. Step 6: Final answer
    x = 391,942.57

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