Finding the Fourth Proportional to 512,813.70, 707,724.27 and 283,391.19
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Solution
The fourth proportional to 512,813.70, 707,724.27 and 283,391.19 is: 391,102.70
Step by Step Solution
- Step 1: Write the proportion equation
512,813.70 : 707,724.27 = 283,391.19 : x - Step 2: Convert to fraction form
512,813.70/707,724.27 = 283,391.19/x - Step 3: Cross multiply
512,813.70x = 707,724.27 × 283,391.19 - Step 4: Simplify right side
512,813.70x = 200,562,823,067.18 - Step 5: Solve for x
x = 200,562,823,067.18/512,813.70 - Step 6: Final answer
x = 391,102.70
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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.