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Finding the Fourth Proportional to 394,413.60, 591,620.40 and 295,269.60

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Solution

The fourth proportional to 394,413.60, 591,620.40 and 295,269.60 is: 442,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,413.60 : 591,620.40 = 295,269.60 : x
  2. Step 2: Convert to fraction form
    394,413.60/591,620.40 = 295,269.60/x
  3. Step 3: Cross multiply
    394,413.60x = 591,620.40 × 295,269.60
  4. Step 4: Simplify right side
    394,413.60x = 174,687,518,859.84
  5. Step 5: Solve for x
    x = 174,687,518,859.84/394,413.60
  6. Step 6: Final answer
    x = 442,904.40

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Similar ratio
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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.