Finding the Fourth Proportional to 3,478,405.40, 5,217,965.60 and 1,203,926.08
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Solution
The fourth proportional to 3,478,405.40, 5,217,965.60 and 1,203,926.08 is: 1,806,012.86
Step by Step Solution
- Step 1: Write the proportion equation
3,478,405.40 : 5,217,965.60 = 1,203,926.08 : x - Step 2: Convert to fraction form
3,478,405.40/5,217,965.60 = 1,203,926.08/x - Step 3: Cross multiply
3,478,405.40x = 5,217,965.60 × 1,203,926.08 - Step 4: Simplify right side
3,478,405.40x = 6,282,044,870,382.85 - Step 5: Solve for x
x = 6,282,044,870,382.85/3,478,405.40 - Step 6: Final answer
x = 1,806,012.86
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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.