Finding the Fourth Proportional to 1,626,370.99, 2,439,676.19 and 428,284.87
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Solution
The fourth proportional to 1,626,370.99, 2,439,676.19 and 428,284.87 is: 642,458.83
Step by Step Solution
- Step 1: Write the proportion equation
1,626,370.99 : 2,439,676.19 = 428,284.87 : x - Step 2: Convert to fraction form
1,626,370.99/2,439,676.19 = 428,284.87/x - Step 3: Cross multiply
1,626,370.99x = 2,439,676.19 × 428,284.87 - Step 4: Simplify right side
1,626,370.99x = 1,044,876,399,876.25 - Step 5: Solve for x
x = 1,044,876,399,876.25/1,626,370.99 - Step 6: Final answer
x = 642,458.83
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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.