Finding the Fourth Proportional to 1,203,791.09, 1,805,161.70 and 455,312.21
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Solution
The fourth proportional to 1,203,791.09, 1,805,161.70 and 455,312.21 is: 682,769.77
Step by Step Solution
- Step 1: Write the proportion equation
1,203,791.09 : 1,805,161.70 = 455,312.21 : x - Step 2: Convert to fraction form
1,203,791.09/1,805,161.70 = 455,312.21/x - Step 3: Cross multiply
1,203,791.09x = 1,805,161.70 × 455,312.21 - Step 4: Simplify right side
1,203,791.09x = 821,912,168,685.54 - Step 5: Solve for x
x = 821,912,168,685.54/1,203,791.09 - Step 6: Final answer
x = 682,769.77
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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.