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Finding the Fourth Proportional to 481,964.80, 722,817.60 and 145,004.80

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Solution

The fourth proportional to 481,964.80, 722,817.60 and 145,004.80 is: 217,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,964.80 : 722,817.60 = 145,004.80 : x
  2. Step 2: Convert to fraction form
    481,964.80/722,817.60 = 145,004.80/x
  3. Step 3: Cross multiply
    481,964.80x = 722,817.60 × 145,004.80
  4. Step 4: Simplify right side
    481,964.80x = 104,812,021,524.48
  5. Step 5: Solve for x
    x = 104,812,021,524.48/481,964.80
  6. Step 6: Final answer
    x = 217,468.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.