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Finding the Fourth Proportional to 545,909.70, 818,864.55 and 190,959.60

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Solution

The fourth proportional to 545,909.70, 818,864.55 and 190,959.60 is: 286,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,909.70 : 818,864.55 = 190,959.60 : x
  2. Step 2: Convert to fraction form
    545,909.70/818,864.55 = 190,959.60/x
  3. Step 3: Cross multiply
    545,909.70x = 818,864.55 × 190,959.60
  4. Step 4: Simplify right side
    545,909.70x = 156,370,046,922.18
  5. Step 5: Solve for x
    x = 156,370,046,922.18/545,909.70
  6. Step 6: Final answer
    x = 286,439.40

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