Finding the Fourth Proportional to 1,985,453.75, 2,739,872.99 and 1,125,995.55
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Solution
The fourth proportional to 1,985,453.75, 2,739,872.99 and 1,125,995.55 is: 1,553,843.70
Step by Step Solution
- Step 1: Write the proportion equation
1,985,453.75 : 2,739,872.99 = 1,125,995.55 : x - Step 2: Convert to fraction form
1,985,453.75/2,739,872.99 = 1,125,995.55/x - Step 3: Cross multiply
1,985,453.75x = 2,739,872.99 × 1,125,995.55 - Step 4: Simplify right side
1,985,453.75x = 3,085,084,809,963.34 - Step 5: Solve for x
x = 3,085,084,809,963.34/1,985,453.75 - Step 6: Final answer
x = 1,553,843.70
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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.