Finding the Fourth Proportional to 1,226,932.44, 1,841,239.36 and 428,213.99
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Solution
The fourth proportional to 1,226,932.44, 1,841,239.36 and 428,213.99 is: 642,614.40
Step by Step Solution
- Step 1: Write the proportion equation
1,226,932.44 : 1,841,239.36 = 428,213.99 : x - Step 2: Convert to fraction form
1,226,932.44/1,841,239.36 = 428,213.99/x - Step 3: Cross multiply
1,226,932.44x = 1,841,239.36 × 428,213.99 - Step 4: Simplify right side
1,226,932.44x = 788,444,458,631.21 - Step 5: Solve for x
x = 788,444,458,631.21/1,226,932.44 - Step 6: Final answer
x = 642,614.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.