Finding the Fourth Proportional to 507,212.92, 699,948.75 and 274,638.70
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Solution
The fourth proportional to 507,212.92, 699,948.75 and 274,638.70 is: 378,998.66
Step by Step Solution
- Step 1: Write the proportion equation
507,212.92 : 699,948.75 = 274,638.70 : x - Step 2: Convert to fraction form
507,212.92/699,948.75 = 274,638.70/x - Step 3: Cross multiply
507,212.92x = 699,948.75 × 274,638.70 - Step 4: Simplify right side
507,212.92x = 192,233,014,766.63 - Step 5: Solve for x
x = 192,233,014,766.63/507,212.92 - Step 6: Final answer
x = 378,998.66
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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.