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Finding the Fourth Proportional to 428,264.15, 590,736.92 and 275,501.25

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Solution

The fourth proportional to 428,264.15, 590,736.92 and 275,501.25 is: 380,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,264.15 : 590,736.92 = 275,501.25 : x
  2. Step 2: Convert to fraction form
    428,264.15/590,736.92 = 275,501.25/x
  3. Step 3: Cross multiply
    428,264.15x = 590,736.92 × 275,501.25
  4. Step 4: Simplify right side
    428,264.15x = 162,748,758,503.64
  5. Step 5: Solve for x
    x = 162,748,758,503.64/428,264.15
  6. Step 6: Final answer
    x = 380,019.58

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