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Finding the Fourth Proportional to 465,855.40, 698,783.10 and 414,245.80

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Solution

The fourth proportional to 465,855.40, 698,783.10 and 414,245.80 is: 621,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,855.40 : 698,783.10 = 414,245.80 : x
  2. Step 2: Convert to fraction form
    465,855.40/698,783.10 = 414,245.80/x
  3. Step 3: Cross multiply
    465,855.40x = 698,783.10 × 414,245.80
  4. Step 4: Simplify right side
    465,855.40x = 289,467,964,285.98
  5. Step 5: Solve for x
    x = 289,467,964,285.98/465,855.40
  6. Step 6: Final answer
    x = 621,368.70

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