Finding the Fourth Proportional to 1,326,838.26, 1,830,596.34 and 1,081,400.99
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Solution
The fourth proportional to 1,326,838.26, 1,830,596.34 and 1,081,400.99 is: 1,491,974.38
Step by Step Solution
- Step 1: Write the proportion equation
1,326,838.26 : 1,830,596.34 = 1,081,400.99 : x - Step 2: Convert to fraction form
1,326,838.26/1,830,596.34 = 1,081,400.99/x - Step 3: Cross multiply
1,326,838.26x = 1,830,596.34 × 1,081,400.99 - Step 4: Simplify right side
1,326,838.26x = 1,979,608,694,366.38 - Step 5: Solve for x
x = 1,979,608,694,366.38/1,326,838.26 - Step 6: Final answer
x = 1,491,974.38
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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.