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Finding the Fourth Proportional to 413,404.20, 620,106.30 and 397,657.80

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Solution

The fourth proportional to 413,404.20, 620,106.30 and 397,657.80 is: 596,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,404.20 : 620,106.30 = 397,657.80 : x
  2. Step 2: Convert to fraction form
    413,404.20/620,106.30 = 397,657.80/x
  3. Step 3: Cross multiply
    413,404.20x = 620,106.30 × 397,657.80
  4. Step 4: Simplify right side
    413,404.20x = 246,590,107,024.14
  5. Step 5: Solve for x
    x = 246,590,107,024.14/413,404.20
  6. Step 6: Final answer
    x = 596,486.70

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