Finding the Fourth Proportional to 1,995,413.40, 2,993,120.10 and 1,153,531.80
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Solution
The fourth proportional to 1,995,413.40, 2,993,120.10 and 1,153,531.80 is: 1,730,297.70
Step by Step Solution
- Step 1: Write the proportion equation
1,995,413.40 : 2,993,120.10 = 1,153,531.80 : x - Step 2: Convert to fraction form
1,995,413.40/2,993,120.10 = 1,153,531.80/x - Step 3: Cross multiply
1,995,413.40x = 2,993,120.10 × 1,153,531.80 - Step 4: Simplify right side
1,995,413.40x = 3,452,659,216,569.18 - Step 5: Solve for x
x = 3,452,659,216,569.18/1,995,413.40 - Step 6: Final answer
x = 1,730,297.70
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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.