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Finding the Fourth Proportional to 404,612.80, 605,536.80 and 354,846.40

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Solution

The fourth proportional to 404,612.80, 605,536.80 and 354,846.40 is: 531,057.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,612.80 : 605,536.80 = 354,846.40 : x
  2. Step 2: Convert to fraction form
    404,612.80/605,536.80 = 354,846.40/x
  3. Step 3: Cross multiply
    404,612.80x = 605,536.80 × 354,846.40
  4. Step 4: Simplify right side
    404,612.80x = 214,872,553,547.52
  5. Step 5: Solve for x
    x = 214,872,553,547.52/404,612.80
  6. Step 6: Final answer
    x = 531,057.23

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