Finding the Fourth Proportional to 1,129,729.44, 1,559,024.70 and 620,431.82
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Solution
The fourth proportional to 1,129,729.44, 1,559,024.70 and 620,431.82 is: 856,194.85
Step by Step Solution
- Step 1: Write the proportion equation
1,129,729.44 : 1,559,024.70 = 620,431.82 : x - Step 2: Convert to fraction form
1,129,729.44/1,559,024.70 = 620,431.82/x - Step 3: Cross multiply
1,129,729.44x = 1,559,024.70 × 620,431.82 - Step 4: Simplify right side
1,129,729.44x = 967,268,524,250.83 - Step 5: Solve for x
x = 967,268,524,250.83/1,129,729.44 - Step 6: Final answer
x = 856,194.85
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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.