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Finding the Fourth Proportional to 412,699.70, 619,049.55 and 377,270.30

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Solution

The fourth proportional to 412,699.70, 619,049.55 and 377,270.30 is: 565,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,699.70 : 619,049.55 = 377,270.30 : x
  2. Step 2: Convert to fraction form
    412,699.70/619,049.55 = 377,270.30/x
  3. Step 3: Cross multiply
    412,699.70x = 619,049.55 × 377,270.30
  4. Step 4: Simplify right side
    412,699.70x = 233,549,009,443.37
  5. Step 5: Solve for x
    x = 233,549,009,443.37/412,699.70
  6. Step 6: Final answer
    x = 565,905.45

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