Finding the Fourth Proportional to 3,985,622.43, 5,979,434.99 and 1,145,739.75
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Solution
The fourth proportional to 3,985,622.43, 5,979,434.99 and 1,145,739.75 is: 1,718,897.48
Step by Step Solution
- Step 1: Write the proportion equation
3,985,622.43 : 5,979,434.99 = 1,145,739.75 : x - Step 2: Convert to fraction form
3,985,622.43/5,979,434.99 = 1,145,739.75/x - Step 3: Cross multiply
3,985,622.43x = 5,979,434.99 × 1,145,739.75 - Step 4: Simplify right side
3,985,622.43x = 6,850,876,344,855.15 - Step 5: Solve for x
x = 6,850,876,344,855.15/3,985,622.43 - Step 6: Final answer
x = 1,718,897.48
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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.