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Finding the Fourth Proportional to 1,297,747.68, 1,790,631.72 and 724,699.68

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Solution

The fourth proportional to 1,297,747.68, 1,790,631.72 and 724,699.68 is: 999,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,747.68 : 1,790,631.72 = 724,699.68 : x
  2. Step 2: Convert to fraction form
    1,297,747.68/1,790,631.72 = 724,699.68/x
  3. Step 3: Cross multiply
    1,297,747.68x = 1,790,631.72 × 724,699.68
  4. Step 4: Simplify right side
    1,297,747.68x = 1,297,670,234,481.85
  5. Step 5: Solve for x
    x = 1,297,670,234,481.85/1,297,747.68
  6. Step 6: Final answer
    x = 999,940.32

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