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Finding the Fourth Proportional to 559,335.78, 771,856.83 and 317,586.69

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Solution

The fourth proportional to 559,335.78, 771,856.83 and 317,586.69 is: 438,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,335.78 : 771,856.83 = 317,586.69 : x
  2. Step 2: Convert to fraction form
    559,335.78/771,856.83 = 317,586.69/x
  3. Step 3: Cross multiply
    559,335.78x = 771,856.83 × 317,586.69
  4. Step 4: Simplify right side
    559,335.78x = 245,131,455,793.59
  5. Step 5: Solve for x
    x = 245,131,455,793.59/559,335.78
  6. Step 6: Final answer
    x = 438,254.56

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