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Finding the Fourth Proportional to 545,498.55, 818,376.57 and 171,521.55

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Solution

The fourth proportional to 545,498.55, 818,376.57 and 171,521.55 is: 257,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,498.55 : 818,376.57 = 171,521.55 : x
  2. Step 2: Convert to fraction form
    545,498.55/818,376.57 = 171,521.55/x
  3. Step 3: Cross multiply
    545,498.55x = 818,376.57 × 171,521.55
  4. Step 4: Simplify right side
    545,498.55x = 140,369,217,770.08
  5. Step 5: Solve for x
    x = 140,369,217,770.08/545,498.55
  6. Step 6: Final answer
    x = 257,322.81

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