Finding the Fourth Proportional to 1,687,287.51, 2,328,413.85 and 998,968.14
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Solution
The fourth proportional to 1,687,287.51, 2,328,413.85 and 998,968.14 is: 1,378,550.63
Step by Step Solution
- Step 1: Write the proportion equation
1,687,287.51 : 2,328,413.85 = 998,968.14 : x - Step 2: Convert to fraction form
1,687,287.51/2,328,413.85 = 998,968.14/x - Step 3: Cross multiply
1,687,287.51x = 2,328,413.85 × 998,968.14 - Step 4: Simplify right side
1,687,287.51x = 2,326,011,252,884.74 - Step 5: Solve for x
x = 2,326,011,252,884.74/1,687,287.51 - Step 6: Final answer
x = 1,378,550.63
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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.