Finding the Fourth Proportional to 3,915,861.83, 5,874,106.73 and 1,488,178.11
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Solution
The fourth proportional to 3,915,861.83, 5,874,106.73 and 1,488,178.11 is: 2,232,386.49
Step by Step Solution
- Step 1: Write the proportion equation
3,915,861.83 : 5,874,106.73 = 1,488,178.11 : x - Step 2: Convert to fraction form
3,915,861.83/5,874,106.73 = 1,488,178.11/x - Step 3: Cross multiply
3,915,861.83x = 5,874,106.73 × 1,488,178.11 - Step 4: Simplify right side
3,915,861.83x = 8,741,717,043,948.79 - Step 5: Solve for x
x = 8,741,717,043,948.79/3,915,861.83 - Step 6: Final answer
x = 2,232,386.49
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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.