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Finding the Fourth Proportional to 413,600.57, 620,709.66 and 307,230.15

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Solution

The fourth proportional to 413,600.57, 620,709.66 and 307,230.15 is: 461,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,600.57 : 620,709.66 = 307,230.15 : x
  2. Step 2: Convert to fraction form
    413,600.57/620,709.66 = 307,230.15/x
  3. Step 3: Cross multiply
    413,600.57x = 620,709.66 × 307,230.15
  4. Step 4: Simplify right side
    413,600.57x = 190,700,721,948.25
  5. Step 5: Solve for x
    x = 190,700,721,948.25/413,600.57
  6. Step 6: Final answer
    x = 461,074.62

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