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Finding the Fourth Proportional to 545,569.20, 818,499.60 and 486,811.80

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Solution

The fourth proportional to 545,569.20, 818,499.60 and 486,811.80 is: 730,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,569.20 : 818,499.60 = 486,811.80 : x
  2. Step 2: Convert to fraction form
    545,569.20/818,499.60 = 486,811.80/x
  3. Step 3: Cross multiply
    545,569.20x = 818,499.60 × 486,811.80
  4. Step 4: Simplify right side
    545,569.20x = 398,455,263,575.28
  5. Step 5: Solve for x
    x = 398,455,263,575.28/545,569.20
  6. Step 6: Final answer
    x = 730,347.80

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