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Finding the Fourth Proportional to 381,413.34, 574,404.05 and 347,362.78

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Solution

The fourth proportional to 381,413.34, 574,404.05 and 347,362.78 is: 523,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,413.34 : 574,404.05 = 347,362.78 : x
  2. Step 2: Convert to fraction form
    381,413.34/574,404.05 = 347,362.78/x
  3. Step 3: Cross multiply
    381,413.34x = 574,404.05 × 347,362.78
  4. Step 4: Simplify right side
    381,413.34x = 199,526,585,718.27
  5. Step 5: Solve for x
    x = 199,526,585,718.27/381,413.34
  6. Step 6: Final answer
    x = 523,124.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.