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Finding the Fourth Proportional to 455,956.82, 684,009.55 and 140,413.72

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Solution

The fourth proportional to 455,956.82, 684,009.55 and 140,413.72 is: 210,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,956.82 : 684,009.55 = 140,413.72 : x
  2. Step 2: Convert to fraction form
    455,956.82/684,009.55 = 140,413.72/x
  3. Step 3: Cross multiply
    455,956.82x = 684,009.55 × 140,413.72
  4. Step 4: Simplify right side
    455,956.82x = 96,044,325,431.03
  5. Step 5: Solve for x
    x = 96,044,325,431.03/455,956.82
  6. Step 6: Final answer
    x = 210,643.47

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