Finding the Fourth Proportional to 512,415.44, 707,133.35 and 286,060.94
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Solution
The fourth proportional to 512,415.44, 707,133.35 and 286,060.94 is: 394,764.12
Step by Step Solution
- Step 1: Write the proportion equation
512,415.44 : 707,133.35 = 286,060.94 : x - Step 2: Convert to fraction form
512,415.44/707,133.35 = 286,060.94/x - Step 3: Cross multiply
512,415.44x = 707,133.35 × 286,060.94 - Step 4: Simplify right side
512,415.44x = 202,283,230,806.35 - Step 5: Solve for x
x = 202,283,230,806.35/512,415.44 - Step 6: Final answer
x = 394,764.12
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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.