Finding the Fourth Proportional to 1,638,368.18, 2,261,917.94 and 1,456,577.99
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Solution
The fourth proportional to 1,638,368.18, 2,261,917.94 and 1,456,577.99 is: 2,010,939.86
Step by Step Solution
- Step 1: Write the proportion equation
1,638,368.18 : 2,261,917.94 = 1,456,577.99 : x - Step 2: Convert to fraction form
1,638,368.18/2,261,917.94 = 1,456,577.99/x - Step 3: Cross multiply
1,638,368.18x = 2,261,917.94 × 1,456,577.99 - Step 4: Simplify right side
1,638,368.18x = 3,294,659,886,590.14 - Step 5: Solve for x
x = 3,294,659,886,590.14/1,638,368.18 - Step 6: Final answer
x = 2,010,939.86
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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.