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Finding the Fourth Proportional to 481,049.56, 721,457.70 and 200,413.72

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Solution

The fourth proportional to 481,049.56, 721,457.70 and 200,413.72 is: 300,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,049.56 : 721,457.70 = 200,413.72 : x
  2. Step 2: Convert to fraction form
    481,049.56/721,457.70 = 200,413.72/x
  3. Step 3: Cross multiply
    481,049.56x = 721,457.70 × 200,413.72
  4. Step 4: Simplify right side
    481,049.56x = 144,590,021,479.64
  5. Step 5: Solve for x
    x = 144,590,021,479.64/481,049.56
  6. Step 6: Final answer
    x = 300,571.99

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1.5x scale

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.