Finding the Fourth Proportional to 3,460,413.94, 4,775,507.80 and 1,990,320.12
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Solution
The fourth proportional to 3,460,413.94, 4,775,507.80 and 1,990,320.12 is: 2,746,720.31
Step by Step Solution
- Step 1: Write the proportion equation
3,460,413.94 : 4,775,507.80 = 1,990,320.12 : x - Step 2: Convert to fraction form
3,460,413.94/4,775,507.80 = 1,990,320.12/x - Step 3: Cross multiply
3,460,413.94x = 4,775,507.80 × 1,990,320.12 - Step 4: Simplify right side
3,460,413.94x = 9,504,789,257,556.94 - Step 5: Solve for x
x = 9,504,789,257,556.94/3,460,413.94 - Step 6: Final answer
x = 2,746,720.31
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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.