Finding the Fourth Proportional to 1,021,581.18, 1,531,320.34 and 453,229.94
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Solution
The fourth proportional to 1,021,581.18, 1,531,320.34 and 453,229.94 is: 679,378.43
Step by Step Solution
- Step 1: Write the proportion equation
1,021,581.18 : 1,531,320.34 = 453,229.94 : x - Step 2: Convert to fraction form
1,021,581.18/1,531,320.34 = 453,229.94/x - Step 3: Cross multiply
1,021,581.18x = 1,531,320.34 × 453,229.94 - Step 4: Simplify right side
1,021,581.18x = 694,040,215,896.23 - Step 5: Solve for x
x = 694,040,215,896.23/1,021,581.18 - Step 6: Final answer
x = 679,378.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.