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Finding the Fourth Proportional to 284,718.12, 427,071.78 and 85,039.08

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Solution

The fourth proportional to 284,718.12, 427,071.78 and 85,039.08 is: 127,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,718.12 : 427,071.78 = 85,039.08 : x
  2. Step 2: Convert to fraction form
    284,718.12/427,071.78 = 85,039.08/x
  3. Step 3: Cross multiply
    284,718.12x = 427,071.78 × 85,039.08
  4. Step 4: Simplify right side
    284,718.12x = 36,317,791,265.16
  5. Step 5: Solve for x
    x = 36,317,791,265.16/284,718.12
  6. Step 6: Final answer
    x = 127,557.01

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