Finding the Fourth Proportional to 512,394.31, 707,104.25 and 286,039.81
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Solution
The fourth proportional to 512,394.31, 707,104.25 and 286,039.81 is: 394,734.99
Step by Step Solution
- Step 1: Write the proportion equation
512,394.31 : 707,104.25 = 286,039.81 : x - Step 2: Convert to fraction form
512,394.31/707,104.25 = 286,039.81/x - Step 3: Cross multiply
512,394.31x = 707,104.25 × 286,039.81 - Step 4: Simplify right side
512,394.31x = 202,259,965,320.19 - Step 5: Solve for x
x = 202,259,965,320.19/512,394.31 - Step 6: Final answer
x = 394,734.99
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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.