Finding the Fourth Proportional to 1,277,988.63, 1,763,629.27 and 697,224.81
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Solution
The fourth proportional to 1,277,988.63, 1,763,629.27 and 697,224.81 is: 962,172.94
Step by Step Solution
- Step 1: Write the proportion equation
1,277,988.63 : 1,763,629.27 = 697,224.81 : x - Step 2: Convert to fraction form
1,277,988.63/1,763,629.27 = 697,224.81/x - Step 3: Cross multiply
1,277,988.63x = 1,763,629.27 × 697,224.81 - Step 4: Simplify right side
1,277,988.63x = 1,229,646,082,686.19 - Step 5: Solve for x
x = 1,229,646,082,686.19/1,277,988.63 - Step 6: Final answer
x = 962,172.94
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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.