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Finding the Fourth Proportional to 573,635.72, 791,622.42 and 311,993.37

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Solution

The fourth proportional to 573,635.72, 791,622.42 and 311,993.37 is: 430,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,635.72 : 791,622.42 = 311,993.37 : x
  2. Step 2: Convert to fraction form
    573,635.72/791,622.42 = 311,993.37/x
  3. Step 3: Cross multiply
    573,635.72x = 791,622.42 × 311,993.37
  4. Step 4: Simplify right side
    573,635.72x = 246,980,945,413.38
  5. Step 5: Solve for x
    x = 246,980,945,413.38/573,635.72
  6. Step 6: Final answer
    x = 430,553.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.