Finding the Fourth Proportional to 3,828,576.56, 5,283,436.12 and 2,219,877.68
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Solution
The fourth proportional to 3,828,576.56, 5,283,436.12 and 2,219,877.68 is: 3,063,431.47
Step by Step Solution
- Step 1: Write the proportion equation
3,828,576.56 : 5,283,436.12 = 2,219,877.68 : x - Step 2: Convert to fraction form
3,828,576.56/5,283,436.12 = 2,219,877.68/x - Step 3: Cross multiply
3,828,576.56x = 5,283,436.12 × 2,219,877.68 - Step 4: Simplify right side
3,828,576.56x = 11,728,581,916,493.80 - Step 5: Solve for x
x = 11,728,581,916,493.80/3,828,576.56 - Step 6: Final answer
x = 3,063,431.47
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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.