Finding the Fourth Proportional to 2,890,827.20, 4,336,240.80 and 1,207,930.70
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Solution
The fourth proportional to 2,890,827.20, 4,336,240.80 and 1,207,930.70 is: 1,811,896.05
Step by Step Solution
- Step 1: Write the proportion equation
2,890,827.20 : 4,336,240.80 = 1,207,930.70 : x - Step 2: Convert to fraction form
2,890,827.20/4,336,240.80 = 1,207,930.70/x - Step 3: Cross multiply
2,890,827.20x = 4,336,240.80 × 1,207,930.70 - Step 4: Simplify right side
2,890,827.20x = 5,237,878,384,912.56 - Step 5: Solve for x
x = 5,237,878,384,912.56/2,890,827.20 - Step 6: Final answer
x = 1,811,896.05
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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.