Finding the Fourth Proportional to 1,419,944.58, 1,959,603.21 and 775,424.70
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Solution
The fourth proportional to 1,419,944.58, 1,959,603.21 and 775,424.70 is: 1,070,129.60
Step by Step Solution
- Step 1: Write the proportion equation
1,419,944.58 : 1,959,603.21 = 775,424.70 : x - Step 2: Convert to fraction form
1,419,944.58/1,959,603.21 = 775,424.70/x - Step 3: Cross multiply
1,419,944.58x = 1,959,603.21 × 775,424.70 - Step 4: Simplify right side
1,419,944.58x = 1,519,524,731,233.29 - Step 5: Solve for x
x = 1,519,524,731,233.29/1,419,944.58 - Step 6: Final answer
x = 1,070,129.60
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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.