Finding the Fourth Proportional to 5,271,465.39, 7,274,639.30 and 2,948,397.75
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Solution
The fourth proportional to 5,271,465.39, 7,274,639.30 and 2,948,397.75 is: 4,068,798.44
Step by Step Solution
- Step 1: Write the proportion equation
5,271,465.39 : 7,274,639.30 = 2,948,397.75 : x - Step 2: Convert to fraction form
5,271,465.39/7,274,639.30 = 2,948,397.75/x - Step 3: Cross multiply
5,271,465.39x = 7,274,639.30 × 2,948,397.75 - Step 4: Simplify right side
5,271,465.39x = 21,448,530,129,439.59 - Step 5: Solve for x
x = 21,448,530,129,439.59/5,271,465.39 - Step 6: Final answer
x = 4,068,798.44
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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.