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Finding the Fourth Proportional to 410,864.70, 615,087.45 and 306,147.90

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Solution

The fourth proportional to 410,864.70, 615,087.45 and 306,147.90 is: 458,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,864.70 : 615,087.45 = 306,147.90 : x
  2. Step 2: Convert to fraction form
    410,864.70/615,087.45 = 306,147.90/x
  3. Step 3: Cross multiply
    410,864.70x = 615,087.45 × 306,147.90
  4. Step 4: Simplify right side
    410,864.70x = 188,307,731,133.86
  5. Step 5: Solve for x
    x = 188,307,731,133.86/410,864.70
  6. Step 6: Final answer
    x = 458,320.54

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