Finding the Fourth Proportional to 1,190,413.06, 1,642,782.09 and 646,554.10
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Solution
The fourth proportional to 1,190,413.06, 1,642,782.09 and 646,554.10 is: 892,251.21
Step by Step Solution
- Step 1: Write the proportion equation
1,190,413.06 : 1,642,782.09 = 646,554.10 : x - Step 2: Convert to fraction form
1,190,413.06/1,642,782.09 = 646,554.10/x - Step 3: Cross multiply
1,190,413.06x = 1,642,782.09 × 646,554.10 - Step 4: Simplify right side
1,190,413.06x = 1,062,147,495,696.07 - Step 5: Solve for x
x = 1,062,147,495,696.07/1,190,413.06 - Step 6: Final answer
x = 892,251.21
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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.