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Finding the Fourth Proportional to 455,916.90, 682,891.20 and 296,484.60

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Solution

The fourth proportional to 455,916.90, 682,891.20 and 296,484.60 is: 444,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,916.90 : 682,891.20 = 296,484.60 : x
  2. Step 2: Convert to fraction form
    455,916.90/682,891.20 = 296,484.60/x
  3. Step 3: Cross multiply
    455,916.90x = 682,891.20 × 296,484.60
  4. Step 4: Simplify right side
    455,916.90x = 202,466,724,275.52
  5. Step 5: Solve for x
    x = 202,466,724,275.52/455,916.90
  6. Step 6: Final answer
    x = 444,086.90

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