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Finding the Fourth Proportional to 354,310.20, 531,465.30 and 349,061.40

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Solution

The fourth proportional to 354,310.20, 531,465.30 and 349,061.40 is: 523,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,310.20 : 531,465.30 = 349,061.40 : x
  2. Step 2: Convert to fraction form
    354,310.20/531,465.30 = 349,061.40/x
  3. Step 3: Cross multiply
    354,310.20x = 531,465.30 × 349,061.40
  4. Step 4: Simplify right side
    354,310.20x = 185,514,021,669.42
  5. Step 5: Solve for x
    x = 185,514,021,669.42/354,310.20
  6. Step 6: Final answer
    x = 523,592.10

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