Finding the Fourth Proportional to 1,028,396.06, 1,419,268.47 and 757,700.54
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Solution
The fourth proportional to 1,028,396.06, 1,419,268.47 and 757,700.54 is: 1,045,687.09
Step by Step Solution
- Step 1: Write the proportion equation
1,028,396.06 : 1,419,268.47 = 757,700.54 : x - Step 2: Convert to fraction form
1,028,396.06/1,419,268.47 = 757,700.54/x - Step 3: Cross multiply
1,028,396.06x = 1,419,268.47 × 757,700.54 - Step 4: Simplify right side
1,028,396.06x = 1,075,380,486,123.97 - Step 5: Solve for x
x = 1,075,380,486,123.97/1,028,396.06 - Step 6: Final answer
x = 1,045,687.09
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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.