Finding the Fourth Proportional to 1,393,757.74, 1,921,349.82 and 985,138.66
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Solution
The fourth proportional to 1,393,757.74, 1,921,349.82 and 985,138.66 is: 1,358,052.36
Step by Step Solution
- Step 1: Write the proportion equation
1,393,757.74 : 1,921,349.82 = 985,138.66 : x - Step 2: Convert to fraction form
1,393,757.74/1,921,349.82 = 985,138.66/x - Step 3: Cross multiply
1,393,757.74x = 1,921,349.82 × 985,138.66 - Step 4: Simplify right side
1,393,757.74x = 1,892,795,987,066.04 - Step 5: Solve for x
x = 1,892,795,987,066.04/1,393,757.74 - Step 6: Final answer
x = 1,358,052.36
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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.