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Finding the Fourth Proportional to 559,007.62, 771,413.65 and 310,648.72

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Solution

The fourth proportional to 559,007.62, 771,413.65 and 310,648.72 is: 428,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,007.62 : 771,413.65 = 310,648.72 : x
  2. Step 2: Convert to fraction form
    559,007.62/771,413.65 = 310,648.72/x
  3. Step 3: Cross multiply
    559,007.62x = 771,413.65 × 310,648.72
  4. Step 4: Simplify right side
    559,007.62x = 239,638,662,963.03
  5. Step 5: Solve for x
    x = 239,638,662,963.03/559,007.62
  6. Step 6: Final answer
    x = 428,685.86

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