Finding the Fourth Proportional to 505,813.05, 698,020.91 and 276,371.97
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Solution
The fourth proportional to 505,813.05, 698,020.91 and 276,371.97 is: 381,392.71
Step by Step Solution
- Step 1: Write the proportion equation
505,813.05 : 698,020.91 = 276,371.97 : x - Step 2: Convert to fraction form
505,813.05/698,020.91 = 276,371.97/x - Step 3: Cross multiply
505,813.05x = 698,020.91 × 276,371.97 - Step 4: Simplify right side
505,813.05x = 192,913,411,034.85 - Step 5: Solve for x
x = 192,913,411,034.85/505,813.05 - Step 6: Final answer
x = 381,392.71
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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.