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Finding the Fourth Proportional to 455,836.20, 684,920.70 and 404,514.60

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Solution

The fourth proportional to 455,836.20, 684,920.70 and 404,514.60 is: 607,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,836.20 : 684,920.70 = 404,514.60 : x
  2. Step 2: Convert to fraction form
    455,836.20/684,920.70 = 404,514.60/x
  3. Step 3: Cross multiply
    455,836.20x = 684,920.70 × 404,514.60
  4. Step 4: Simplify right side
    455,836.20x = 277,060,422,992.22
  5. Step 5: Solve for x
    x = 277,060,422,992.22/455,836.20
  6. Step 6: Final answer
    x = 607,806.98

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