Finding the Fourth Proportional to 1,277,208.12, 1,760,715.81 and 1,004,802.99
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Solution
The fourth proportional to 1,277,208.12, 1,760,715.81 and 1,004,802.99 is: 1,385,187.33
Step by Step Solution
- Step 1: Write the proportion equation
1,277,208.12 : 1,760,715.81 = 1,004,802.99 : x - Step 2: Convert to fraction form
1,277,208.12/1,760,715.81 = 1,004,802.99/x - Step 3: Cross multiply
1,277,208.12x = 1,760,715.81 × 1,004,802.99 - Step 4: Simplify right side
1,277,208.12x = 1,769,172,510,428.27 - Step 5: Solve for x
x = 1,769,172,510,428.27/1,277,208.12 - Step 6: Final answer
x = 1,385,187.33
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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.