Finding the Fourth Proportional to 3,979,885.12, 5,969,244.45 and 1,957,586.20
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Solution
The fourth proportional to 3,979,885.12, 5,969,244.45 and 1,957,586.20 is: 2,936,092.43
Step by Step Solution
- Step 1: Write the proportion equation
3,979,885.12 : 5,969,244.45 = 1,957,586.20 : x - Step 2: Convert to fraction form
3,979,885.12/5,969,244.45 = 1,957,586.20/x - Step 3: Cross multiply
3,979,885.12x = 5,969,244.45 × 1,957,586.20 - Step 4: Simplify right side
3,979,885.12x = 11,685,310,559,746.59 - Step 5: Solve for x
x = 11,685,310,559,746.59/3,979,885.12 - Step 6: Final answer
x = 2,936,092.43
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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.