Finding the Fourth Proportional to 1,647,311.10, 2,272,117.44 and 1,511,782.74
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Solution
The fourth proportional to 1,647,311.10, 2,272,117.44 and 1,511,782.74 is: 2,085,184.72
Step by Step Solution
- Step 1: Write the proportion equation
1,647,311.10 : 2,272,117.44 = 1,511,782.74 : x - Step 2: Convert to fraction form
1,647,311.10/2,272,117.44 = 1,511,782.74/x - Step 3: Cross multiply
1,647,311.10x = 2,272,117.44 × 1,511,782.74 - Step 4: Simplify right side
1,647,311.10x = 3,434,947,929,044.99 - Step 5: Solve for x
x = 3,434,947,929,044.99/1,647,311.10 - Step 6: Final answer
x = 2,085,184.72
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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.