Finding the Fourth Proportional to 1,816,646.82, 2,506,974.99 and 989,716.32
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Solution
The fourth proportional to 1,816,646.82, 2,506,974.99 and 989,716.32 is: 1,365,809.82
Step by Step Solution
- Step 1: Write the proportion equation
1,816,646.82 : 2,506,974.99 = 989,716.32 : x - Step 2: Convert to fraction form
1,816,646.82/2,506,974.99 = 989,716.32/x - Step 3: Cross multiply
1,816,646.82x = 2,506,974.99 × 989,716.32 - Step 4: Simplify right side
1,816,646.82x = 2,481,194,061,434.84 - Step 5: Solve for x
x = 2,481,194,061,434.84/1,816,646.82 - Step 6: Final answer
x = 1,365,809.82
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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.