Finding the Fourth Proportional to 1,678,523.21, 2,316,362.36 and 914,576.77
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Solution
The fourth proportional to 1,678,523.21, 2,316,362.36 and 914,576.77 is: 1,262,116.12
Step by Step Solution
- Step 1: Write the proportion equation
1,678,523.21 : 2,316,362.36 = 914,576.77 : x - Step 2: Convert to fraction form
1,678,523.21/2,316,362.36 = 914,576.77/x - Step 3: Cross multiply
1,678,523.21x = 2,316,362.36 × 914,576.77 - Step 4: Simplify right side
1,678,523.21x = 2,118,491,200,785.49 - Step 5: Solve for x
x = 2,118,491,200,785.49/1,678,523.21 - Step 6: Final answer
x = 1,262,116.12
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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.