Finding the Fourth Proportional to 1,289,730.87, 1,934,593.97 and 343,101.60
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Solution
The fourth proportional to 1,289,730.87, 1,934,593.97 and 343,101.60 is: 514,651.78
Step by Step Solution
- Step 1: Write the proportion equation
1,289,730.87 : 1,934,593.97 = 343,101.60 : x - Step 2: Convert to fraction form
1,289,730.87/1,934,593.97 = 343,101.60/x - Step 3: Cross multiply
1,289,730.87x = 1,934,593.97 × 343,101.60 - Step 4: Simplify right side
1,289,730.87x = 663,762,284,741.84 - Step 5: Solve for x
x = 663,762,284,741.84/1,289,730.87 - Step 6: Final answer
x = 514,651.78
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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.