Finding the Fourth Proportional to 3,806,858.96, 5,253,904.32 and 2,278,965.68
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Solution
The fourth proportional to 3,806,858.96, 5,253,904.32 and 2,278,965.68 is: 3,145,235.42
Step by Step Solution
- Step 1: Write the proportion equation
3,806,858.96 : 5,253,904.32 = 2,278,965.68 : x - Step 2: Convert to fraction form
3,806,858.96/5,253,904.32 = 2,278,965.68/x - Step 3: Cross multiply
3,806,858.96x = 5,253,904.32 × 2,278,965.68 - Step 4: Simplify right side
3,806,858.96x = 11,973,467,631,283.74 - Step 5: Solve for x
x = 11,973,467,631,283.74/3,806,858.96 - Step 6: Final answer
x = 3,145,235.42
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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.