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Finding the Fourth Proportional to 410,094.80, 615,084.60 and 129,640.40

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Solution

The fourth proportional to 410,094.80, 615,084.60 and 129,640.40 is: 194,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,094.80 : 615,084.60 = 129,640.40 : x
  2. Step 2: Convert to fraction form
    410,094.80/615,084.60 = 129,640.40/x
  3. Step 3: Cross multiply
    410,094.80x = 615,084.60 × 129,640.40
  4. Step 4: Simplify right side
    410,094.80x = 79,739,813,577.84
  5. Step 5: Solve for x
    x = 79,739,813,577.84/410,094.80
  6. Step 6: Final answer
    x = 194,442.39

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