Finding the Fourth Proportional to 412,071.19, 618,123.24 and 127,791.26
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Solution
The fourth proportional to 412,071.19, 618,123.24 and 127,791.26 is: 191,691.99
Step by Step Solution
- Step 1: Write the proportion equation
412,071.19 : 618,123.24 = 127,791.26 : x - Step 2: Convert to fraction form
412,071.19/618,123.24 = 127,791.26/x - Step 3: Cross multiply
412,071.19x = 618,123.24 × 127,791.26 - Step 4: Simplify right side
412,071.19x = 78,990,747,035.93 - Step 5: Solve for x
x = 78,990,747,035.93/412,071.19 - Step 6: Final answer
x = 191,691.99
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1.5x scale
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.