Finding the Fourth Proportional to 642,123.23, 963,194.20 and 305,198.24
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Solution
The fourth proportional to 642,123.23, 963,194.20 and 305,198.24 is: 457,801.80
Step by Step Solution
- Step 1: Write the proportion equation
642,123.23 : 963,194.20 = 305,198.24 : x - Step 2: Convert to fraction form
642,123.23/963,194.20 = 305,198.24/x - Step 3: Cross multiply
642,123.23x = 963,194.20 × 305,198.24 - Step 4: Simplify right side
642,123.23x = 293,965,169,039.24 - Step 5: Solve for x
x = 293,965,169,039.24/642,123.23 - Step 6: Final answer
x = 457,801.80
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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.