Finding the Fourth Proportional to 1,678,844.79, 2,317,108.01 and 990,476.96
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Solution
The fourth proportional to 1,678,844.79, 2,317,108.01 and 990,476.96 is: 1,367,036.49
Step by Step Solution
- Step 1: Write the proportion equation
1,678,844.79 : 2,317,108.01 = 990,476.96 : x - Step 2: Convert to fraction form
1,678,844.79/2,317,108.01 = 990,476.96/x - Step 3: Cross multiply
1,678,844.79x = 2,317,108.01 × 990,476.96 - Step 4: Simplify right side
1,678,844.79x = 2,295,042,081,198.52 - Step 5: Solve for x
x = 2,295,042,081,198.52/1,678,844.79 - Step 6: Final answer
x = 1,367,036.49
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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.