Finding the Fourth Proportional to 899,906.48, 1,242,183.68 and 518,085.44
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Solution
The fourth proportional to 899,906.48, 1,242,183.68 and 518,085.44 is: 715,137.95
Step by Step Solution
- Step 1: Write the proportion equation
899,906.48 : 1,242,183.68 = 518,085.44 : x - Step 2: Convert to fraction form
899,906.48/1,242,183.68 = 518,085.44/x - Step 3: Cross multiply
899,906.48x = 1,242,183.68 × 518,085.44 - Step 4: Simplify right side
899,906.48x = 643,557,278,413.62 - Step 5: Solve for x
x = 643,557,278,413.62/899,906.48 - Step 6: Final answer
x = 715,137.95
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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.