Finding the Fourth Proportional to 1,220,428.35, 1,684,861.47 and 833,825.07
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Solution
The fourth proportional to 1,220,428.35, 1,684,861.47 and 833,825.07 is: 1,151,136.59
Step by Step Solution
- Step 1: Write the proportion equation
1,220,428.35 : 1,684,861.47 = 833,825.07 : x - Step 2: Convert to fraction form
1,220,428.35/1,684,861.47 = 833,825.07/x - Step 3: Cross multiply
1,220,428.35x = 1,684,861.47 × 833,825.07 - Step 4: Simplify right side
1,220,428.35x = 1,404,879,733,163.05 - Step 5: Solve for x
x = 1,404,879,733,163.05/1,220,428.35 - Step 6: Final answer
x = 1,151,136.59
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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.