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Finding the Fourth Proportional to 543,645.60, 815,468.40 and 354,688.80

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Solution

The fourth proportional to 543,645.60, 815,468.40 and 354,688.80 is: 532,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,645.60 : 815,468.40 = 354,688.80 : x
  2. Step 2: Convert to fraction form
    543,645.60/815,468.40 = 354,688.80/x
  3. Step 3: Cross multiply
    543,645.60x = 815,468.40 × 354,688.80
  4. Step 4: Simplify right side
    543,645.60x = 289,237,508,233.92
  5. Step 5: Solve for x
    x = 289,237,508,233.92/543,645.60
  6. Step 6: Final answer
    x = 532,033.20

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