Finding the Fourth Proportional to 3,979,405.26, 5,487,678 and 2,526,578.46
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Solution
The fourth proportional to 3,979,405.26, 5,487,678 and 2,526,578.46 is: 3,484,201.31
Step by Step Solution
- Step 1: Write the proportion equation
3,979,405.26 : 5,487,678 = 2,526,578.46 : x - Step 2: Convert to fraction form
3,979,405.26/5,487,678 = 2,526,578.46/x - Step 3: Cross multiply
3,979,405.26x = 5,487,678 × 2,526,578.46 - Step 4: Simplify right side
3,979,405.26x = 13,865,049,030,215.88 - Step 5: Solve for x
x = 13,865,049,030,215.88/3,979,405.26 - Step 6: Final answer
x = 3,484,201.31
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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.