Finding the Fourth Proportional to 726,582.15, 1,089,873.81 and 347,413.68
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Solution
The fourth proportional to 726,582.15, 1,089,873.81 and 347,413.68 is: 521,120.80
Step by Step Solution
- Step 1: Write the proportion equation
726,582.15 : 1,089,873.81 = 347,413.68 : x - Step 2: Convert to fraction form
726,582.15/1,089,873.81 = 347,413.68/x - Step 3: Cross multiply
726,582.15x = 1,089,873.81 × 347,413.68 - Step 4: Simplify right side
726,582.15x = 378,637,071,067.72 - Step 5: Solve for x
x = 378,637,071,067.72/726,582.15 - Step 6: Final answer
x = 521,120.80
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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.