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Finding the Fourth Proportional to 453,195.20, 679,792.80 and 216,999.20

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Solution

The fourth proportional to 453,195.20, 679,792.80 and 216,999.20 is: 325,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,195.20 : 679,792.80 = 216,999.20 : x
  2. Step 2: Convert to fraction form
    453,195.20/679,792.80 = 216,999.20/x
  3. Step 3: Cross multiply
    453,195.20x = 679,792.80 × 216,999.20
  4. Step 4: Simplify right side
    453,195.20x = 147,514,493,765.76
  5. Step 5: Solve for x
    x = 147,514,493,765.76/453,195.20
  6. Step 6: Final answer
    x = 325,498.80

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