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Finding the Fourth Proportional to 383,770.48, 529,749.16 and 288,553.68

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Solution

The fourth proportional to 383,770.48, 529,749.16 and 288,553.68 is: 398,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,770.48 : 529,749.16 = 288,553.68 : x
  2. Step 2: Convert to fraction form
    383,770.48/529,749.16 = 288,553.68/x
  3. Step 3: Cross multiply
    383,770.48x = 529,749.16 × 288,553.68
  4. Step 4: Simplify right side
    383,770.48x = 152,861,069,594.91
  5. Step 5: Solve for x
    x = 152,861,069,594.91/383,770.48
  6. Step 6: Final answer
    x = 398,313.78

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