Finding the Fourth Proportional to 811,471.87, 1,217,271.14 and 271,730.19
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Solution
The fourth proportional to 811,471.87, 1,217,271.14 and 271,730.19 is: 407,616.50
Step by Step Solution
- Step 1: Write the proportion equation
811,471.87 : 1,217,271.14 = 271,730.19 : x - Step 2: Convert to fraction form
811,471.87/1,217,271.14 = 271,730.19/x - Step 3: Cross multiply
811,471.87x = 1,217,271.14 × 271,730.19 - Step 4: Simplify right side
811,471.87x = 330,769,322,378.82 - Step 5: Solve for x
x = 330,769,322,378.82/811,471.87 - Step 6: Final answer
x = 407,616.50
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1.5x scale
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.