Finding the Fourth Proportional to 3,219,635.26, 4,442,916.45 and 1,929,830.14
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Solution
The fourth proportional to 3,219,635.26, 4,442,916.45 and 1,929,830.14 is: 2,663,057.58
Step by Step Solution
- Step 1: Write the proportion equation
3,219,635.26 : 4,442,916.45 = 1,929,830.14 : x - Step 2: Convert to fraction form
3,219,635.26/4,442,916.45 = 1,929,830.14/x - Step 3: Cross multiply
3,219,635.26x = 4,442,916.45 × 1,929,830.14 - Step 4: Simplify right side
3,219,635.26x = 8,574,074,074,711.80 - Step 5: Solve for x
x = 8,574,074,074,711.80/3,219,635.26 - Step 6: Final answer
x = 2,663,057.58
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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.