Finding the Fourth Proportional to 431,329.80, 647,577.90 and 273,865.80
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Solution
The fourth proportional to 431,329.80, 647,577.90 and 273,865.80 is: 411,168.99
Step by Step Solution
- Step 1: Write the proportion equation
431,329.80 : 647,577.90 = 273,865.80 : x - Step 2: Convert to fraction form
431,329.80/647,577.90 = 273,865.80/x - Step 3: Cross multiply
431,329.80x = 647,577.90 × 273,865.80 - Step 4: Simplify right side
431,329.80x = 177,349,439,645.82 - Step 5: Solve for x
x = 177,349,439,645.82/431,329.80 - Step 6: Final answer
x = 411,168.99
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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.