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Finding the Fourth Proportional to 413,566.40, 620,349.60 and 396,070.40

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Solution

The fourth proportional to 413,566.40, 620,349.60 and 396,070.40 is: 594,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,566.40 : 620,349.60 = 396,070.40 : x
  2. Step 2: Convert to fraction form
    413,566.40/620,349.60 = 396,070.40/x
  3. Step 3: Cross multiply
    413,566.40x = 620,349.60 × 396,070.40
  4. Step 4: Simplify right side
    413,566.40x = 245,702,114,211.84
  5. Step 5: Solve for x
    x = 245,702,114,211.84/413,566.40
  6. Step 6: Final answer
    x = 594,105.60

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