Finding the Fourth Proportional to 1,126,608.23, 1,681,717.14 and 1,043,349.14
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Solution
The fourth proportional to 1,126,608.23, 1,681,717.14 and 1,043,349.14 is: 1,557,434.15
Step by Step Solution
- Step 1: Write the proportion equation
1,126,608.23 : 1,681,717.14 = 1,043,349.14 : x - Step 2: Convert to fraction form
1,126,608.23/1,681,717.14 = 1,043,349.14/x - Step 3: Cross multiply
1,126,608.23x = 1,681,717.14 × 1,043,349.14 - Step 4: Simplify right side
1,126,608.23x = 1,754,618,135,946.55 - Step 5: Solve for x
x = 1,754,618,135,946.55/1,126,608.23 - Step 6: Final answer
x = 1,557,434.15
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.