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Finding the Fourth Proportional to 577,906.40, 865,693.20 and 328,296.80

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Solution

The fourth proportional to 577,906.40, 865,693.20 and 328,296.80 is: 491,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,906.40 : 865,693.20 = 328,296.80 : x
  2. Step 2: Convert to fraction form
    577,906.40/865,693.20 = 328,296.80/x
  3. Step 3: Cross multiply
    577,906.40x = 865,693.20 × 328,296.80
  4. Step 4: Simplify right side
    577,906.40x = 284,204,307,341.76
  5. Step 5: Solve for x
    x = 284,204,307,341.76/577,906.40
  6. Step 6: Final answer
    x = 491,782.59

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