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Finding the Fourth Proportional to 493,656.80, 740,830.80 and 213,375.20

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Solution

The fourth proportional to 493,656.80, 740,830.80 and 213,375.20 is: 320,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,656.80 : 740,830.80 = 213,375.20 : x
  2. Step 2: Convert to fraction form
    493,656.80/740,830.80 = 213,375.20/x
  3. Step 3: Cross multiply
    493,656.80x = 740,830.80 × 213,375.20
  4. Step 4: Simplify right side
    493,656.80x = 158,074,920,116.16
  5. Step 5: Solve for x
    x = 158,074,920,116.16/493,656.80
  6. Step 6: Final answer
    x = 320,212.18

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