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Finding the Fourth Proportional to 978,256.40, 1,467,384.60 and 800,963.60

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Solution

The fourth proportional to 978,256.40, 1,467,384.60 and 800,963.60 is: 1,201,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,256.40 : 1,467,384.60 = 800,963.60 : x
  2. Step 2: Convert to fraction form
    978,256.40/1,467,384.60 = 800,963.60/x
  3. Step 3: Cross multiply
    978,256.40x = 1,467,384.60 × 800,963.60
  4. Step 4: Simplify right side
    978,256.40x = 1,175,321,651,800.56
  5. Step 5: Solve for x
    x = 1,175,321,651,800.56/978,256.40
  6. Step 6: Final answer
    x = 1,201,445.40

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