Finding the Fourth Proportional to 1,764,220.50, 2,646,351.20 and 1,678,172.99
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Solution
The fourth proportional to 1,764,220.50, 2,646,351.20 and 1,678,172.99 is: 2,517,278.93
Step by Step Solution
- Step 1: Write the proportion equation
1,764,220.50 : 2,646,351.20 = 1,678,172.99 : x - Step 2: Convert to fraction form
1,764,220.50/2,646,351.20 = 1,678,172.99/x - Step 3: Cross multiply
1,764,220.50x = 2,646,351.20 × 1,678,172.99 - Step 4: Simplify right side
1,764,220.50x = 4,441,035,096,857.76 - Step 5: Solve for x
x = 4,441,035,096,857.76/1,764,220.50 - Step 6: Final answer
x = 2,517,278.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.