Finding the Fourth Proportional to 1,389,350.04, 1,916,413.38 and 1,114,367.70
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Solution
The fourth proportional to 1,389,350.04, 1,916,413.38 and 1,114,367.70 is: 1,537,113.84
Step by Step Solution
- Step 1: Write the proportion equation
1,389,350.04 : 1,916,413.38 = 1,114,367.70 : x - Step 2: Convert to fraction form
1,389,350.04/1,916,413.38 = 1,114,367.70/x - Step 3: Cross multiply
1,389,350.04x = 1,916,413.38 × 1,114,367.70 - Step 4: Simplify right side
1,389,350.04x = 2,135,589,170,519.83 - Step 5: Solve for x
x = 2,135,589,170,519.83/1,389,350.04 - Step 6: Final answer
x = 1,537,113.84
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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.