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Finding the Fourth Proportional to 662,413.60, 993,134.40 and 262,856.80

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Solution

The fourth proportional to 662,413.60, 993,134.40 and 262,856.80 is: 394,092.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,413.60 : 993,134.40 = 262,856.80 : x
  2. Step 2: Convert to fraction form
    662,413.60/993,134.40 = 262,856.80/x
  3. Step 3: Cross multiply
    662,413.60x = 993,134.40 × 262,856.80
  4. Step 4: Simplify right side
    662,413.60x = 261,052,130,353.92
  5. Step 5: Solve for x
    x = 261,052,130,353.92/662,413.60
  6. Step 6: Final answer
    x = 394,092.35

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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.