Finding the Fourth Proportional to 1,999,386.38, 2,759,147.12 and 1,081,615.26
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Solution
The fourth proportional to 1,999,386.38, 2,759,147.12 and 1,081,615.26 is: 1,492,625.77
Step by Step Solution
- Step 1: Write the proportion equation
1,999,386.38 : 2,759,147.12 = 1,081,615.26 : x - Step 2: Convert to fraction form
1,999,386.38/2,759,147.12 = 1,081,615.26/x - Step 3: Cross multiply
1,999,386.38x = 2,759,147.12 × 1,081,615.26 - Step 4: Simplify right side
1,999,386.38x = 2,984,335,629,577.05 - Step 5: Solve for x
x = 2,984,335,629,577.05/1,999,386.38 - Step 6: Final answer
x = 1,492,625.77
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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.