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Finding the Fourth Proportional to 559,009.87, 771,416.76 and 310,650.97

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Solution

The fourth proportional to 559,009.87, 771,416.76 and 310,650.97 is: 428,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,009.87 : 771,416.76 = 310,650.97 : x
  2. Step 2: Convert to fraction form
    559,009.87/771,416.76 = 310,650.97/x
  3. Step 3: Cross multiply
    559,009.87x = 771,416.76 × 310,650.97
  4. Step 4: Simplify right side
    559,009.87x = 239,641,364,768.26
  5. Step 5: Solve for x
    x = 239,641,364,768.26/559,009.87
  6. Step 6: Final answer
    x = 428,688.97

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