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Finding the Fourth Proportional to 559,335.70, 771,879.32 and 304,686.89

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Solution

The fourth proportional to 559,335.70, 771,879.32 and 304,686.89 is: 420,465.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,335.70 : 771,879.32 = 304,686.89 : x
  2. Step 2: Convert to fraction form
    559,335.70/771,879.32 = 304,686.89/x
  3. Step 3: Cross multiply
    559,335.70x = 771,879.32 × 304,686.89
  4. Step 4: Simplify right side
    559,335.70x = 235,181,505,606.72
  5. Step 5: Solve for x
    x = 235,181,505,606.72/559,335.70
  6. Step 6: Final answer
    x = 420,465.76

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