Finding the Fourth Proportional to 1,608,926.62, 2,220,078.09 and 920,489.13
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Solution
The fourth proportional to 1,608,926.62, 2,220,078.09 and 920,489.13 is: 1,270,137.32
Step by Step Solution
- Step 1: Write the proportion equation
1,608,926.62 : 2,220,078.09 = 920,489.13 : x - Step 2: Convert to fraction form
1,608,926.62/2,220,078.09 = 920,489.13/x - Step 3: Cross multiply
1,608,926.62x = 2,220,078.09 × 920,489.13 - Step 4: Simplify right side
1,608,926.62x = 2,043,557,749,596.16 - Step 5: Solve for x
x = 2,043,557,749,596.16/1,608,926.62 - Step 6: Final answer
x = 1,270,137.32
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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.