Finding the Fourth Proportional to 1,988,085.11, 2,743,567.97 and 1,161,639.68
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Solution
The fourth proportional to 1,988,085.11, 2,743,567.97 and 1,161,639.68 is: 1,603,068.90
Step by Step Solution
- Step 1: Write the proportion equation
1,988,085.11 : 2,743,567.97 = 1,161,639.68 : x - Step 2: Convert to fraction form
1,988,085.11/2,743,567.97 = 1,161,639.68/x - Step 3: Cross multiply
1,988,085.11x = 2,743,567.97 × 1,161,639.68 - Step 4: Simplify right side
1,988,085.11x = 3,187,037,399,203.01 - Step 5: Solve for x
x = 3,187,037,399,203.01/1,988,085.11 - Step 6: Final answer
x = 1,603,068.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.