Finding the Fourth Proportional to 486,174.09, 670,916.36 and 282,243.93
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Solution
The fourth proportional to 486,174.09, 670,916.36 and 282,243.93 is: 389,494.37
Step by Step Solution
- Step 1: Write the proportion equation
486,174.09 : 670,916.36 = 282,243.93 : x - Step 2: Convert to fraction form
486,174.09/670,916.36 = 282,243.93/x - Step 3: Cross multiply
486,174.09x = 670,916.36 × 282,243.93 - Step 4: Simplify right side
486,174.09x = 189,362,071,317.46 - Step 5: Solve for x
x = 189,362,071,317.46/486,174.09 - Step 6: Final answer
x = 389,494.37
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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.