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Finding the Fourth Proportional to 640,743.84, 961,511.04 and 325,427.04

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Solution

The fourth proportional to 640,743.84, 961,511.04 and 325,427.04 is: 488,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,743.84 : 961,511.04 = 325,427.04 : x
  2. Step 2: Convert to fraction form
    640,743.84/961,511.04 = 325,427.04/x
  3. Step 3: Cross multiply
    640,743.84x = 961,511.04 × 325,427.04
  4. Step 4: Simplify right side
    640,743.84x = 312,901,691,674.52
  5. Step 5: Solve for x
    x = 312,901,691,674.52/640,743.84
  6. Step 6: Final answer
    x = 488,341.32

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