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Finding the Fourth Proportional to 493,347.72, 680,819.58 and 278,489.64

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Solution

The fourth proportional to 493,347.72, 680,819.58 and 278,489.64 is: 384,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,347.72 : 680,819.58 = 278,489.64 : x
  2. Step 2: Convert to fraction form
    493,347.72/680,819.58 = 278,489.64/x
  3. Step 3: Cross multiply
    493,347.72x = 680,819.58 × 278,489.64
  4. Step 4: Simplify right side
    493,347.72x = 189,601,199,739.15
  5. Step 5: Solve for x
    x = 189,601,199,739.15/493,347.72
  6. Step 6: Final answer
    x = 384,315.55

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