Finding the Fourth Proportional to 1,917,647.42, 2,646,806.33 and 1,102,324.05
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Solution
The fourth proportional to 1,917,647.42, 2,646,806.33 and 1,102,324.05 is: 1,521,467.53
Step by Step Solution
- Step 1: Write the proportion equation
1,917,647.42 : 2,646,806.33 = 1,102,324.05 : x - Step 2: Convert to fraction form
1,917,647.42/2,646,806.33 = 1,102,324.05/x - Step 3: Cross multiply
1,917,647.42x = 2,646,806.33 × 1,102,324.05 - Step 4: Simplify right side
1,917,647.42x = 2,917,638,276,007.05 - Step 5: Solve for x
x = 2,917,638,276,007.05/1,917,647.42 - Step 6: Final answer
x = 1,521,467.53
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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.