Finding the Fourth Proportional to 2,180,691.30, 3,271,036.95 and 1,330,385.70
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Solution
The fourth proportional to 2,180,691.30, 3,271,036.95 and 1,330,385.70 is: 1,995,578.55
Step by Step Solution
- Step 1: Write the proportion equation
2,180,691.30 : 3,271,036.95 = 1,330,385.70 : x - Step 2: Convert to fraction form
2,180,691.30/3,271,036.95 = 1,330,385.70/x - Step 3: Cross multiply
2,180,691.30x = 3,271,036.95 × 1,330,385.70 - Step 4: Simplify right side
2,180,691.30x = 4,351,740,782,451.62 - Step 5: Solve for x
x = 4,351,740,782,451.62/2,180,691.30 - Step 6: Final answer
x = 1,995,578.55
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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.