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Finding the Fourth Proportional to 402,383.31, 604,087.14 and 260,820.96

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Solution

The fourth proportional to 402,383.31, 604,087.14 and 260,820.96 is: 391,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,383.31 : 604,087.14 = 260,820.96 : x
  2. Step 2: Convert to fraction form
    402,383.31/604,087.14 = 260,820.96/x
  3. Step 3: Cross multiply
    402,383.31x = 604,087.14 × 260,820.96
  4. Step 4: Simplify right side
    402,383.31x = 157,558,588,055.30
  5. Step 5: Solve for x
    x = 157,558,588,055.30/402,383.31
  6. Step 6: Final answer
    x = 391,563.42

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