Finding the Fourth Proportional to 486,074.05, 670,674.74 and 282,006.70
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Solution
The fourth proportional to 486,074.05, 670,674.74 and 282,006.70 is: 389,106.90
Step by Step Solution
- Step 1: Write the proportion equation
486,074.05 : 670,674.74 = 282,006.70 : x - Step 2: Convert to fraction form
486,074.05/670,674.74 = 282,006.70/x - Step 3: Cross multiply
486,074.05x = 670,674.74 × 282,006.70 - Step 4: Simplify right side
486,074.05x = 189,134,767,114.04 - Step 5: Solve for x
x = 189,134,767,114.04/486,074.05 - Step 6: Final answer
x = 389,106.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.