Finding the Fourth Proportional to 979,386.13, 1,351,619.81 and 543,825.97
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Solution
The fourth proportional to 979,386.13, 1,351,619.81 and 543,825.97 is: 750,517.01
Step by Step Solution
- Step 1: Write the proportion equation
979,386.13 : 1,351,619.81 = 543,825.97 : x - Step 2: Convert to fraction form
979,386.13/1,351,619.81 = 543,825.97/x - Step 3: Cross multiply
979,386.13x = 1,351,619.81 × 543,825.97 - Step 4: Simplify right side
979,386.13x = 735,045,954,244.47 - Step 5: Solve for x
x = 735,045,954,244.47/979,386.13 - Step 6: Final answer
x = 750,517.01
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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.