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Finding the Fourth Proportional to 542,956.60, 814,434.90 and 353,999.80

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Solution

The fourth proportional to 542,956.60, 814,434.90 and 353,999.80 is: 530,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,956.60 : 814,434.90 = 353,999.80 : x
  2. Step 2: Convert to fraction form
    542,956.60/814,434.90 = 353,999.80/x
  3. Step 3: Cross multiply
    542,956.60x = 814,434.90 × 353,999.80
  4. Step 4: Simplify right side
    542,956.60x = 288,309,791,713.02
  5. Step 5: Solve for x
    x = 288,309,791,713.02/542,956.60
  6. Step 6: Final answer
    x = 530,999.70

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