Finding the Fourth Proportional to 505,911.83, 698,167.49 and 276,478.82
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Solution
The fourth proportional to 505,911.83, 698,167.49 and 276,478.82 is: 381,545.78
Step by Step Solution
- Step 1: Write the proportion equation
505,911.83 : 698,167.49 = 276,478.82 : x - Step 2: Convert to fraction form
505,911.83/698,167.49 = 276,478.82/x - Step 3: Cross multiply
505,911.83x = 698,167.49 × 276,478.82 - Step 4: Simplify right side
505,911.83x = 193,028,521,542.46 - Step 5: Solve for x
x = 193,028,521,542.46/505,911.83 - Step 6: Final answer
x = 381,545.78
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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.