Finding the Fourth Proportional to 814,403.87, 1,123,993.46 and 470,170.98
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Solution
The fourth proportional to 814,403.87, 1,123,993.46 and 470,170.98 is: 648,902.99
Step by Step Solution
- Step 1: Write the proportion equation
814,403.87 : 1,123,993.46 = 470,170.98 : x - Step 2: Convert to fraction form
814,403.87/1,123,993.46 = 470,170.98/x - Step 3: Cross multiply
814,403.87x = 1,123,993.46 × 470,170.98 - Step 4: Simplify right side
814,403.87x = 528,469,107,777.22 - Step 5: Solve for x
x = 528,469,107,777.22/814,403.87 - Step 6: Final answer
x = 648,902.99
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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.