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Finding the Fourth Proportional to 522,053.20, 781,524.60 and 311,582.80

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Solution

The fourth proportional to 522,053.20, 781,524.60 and 311,582.80 is: 466,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,053.20 : 781,524.60 = 311,582.80 : x
  2. Step 2: Convert to fraction form
    522,053.20/781,524.60 = 311,582.80/x
  3. Step 3: Cross multiply
    522,053.20x = 781,524.60 × 311,582.80
  4. Step 4: Simplify right side
    522,053.20x = 243,509,623,136.88
  5. Step 5: Solve for x
    x = 243,509,623,136.88/522,053.20
  6. Step 6: Final answer
    x = 466,445.99

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