Finding the Fourth Proportional to 1,412,611.92, 2,119,544.21 and 805,378.01
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Solution
The fourth proportional to 1,412,611.92, 2,119,544.21 and 805,378.01 is: 1,208,424.10
Step by Step Solution
- Step 1: Write the proportion equation
1,412,611.92 : 2,119,544.21 = 805,378.01 : x - Step 2: Convert to fraction form
1,412,611.92/2,119,544.21 = 805,378.01/x - Step 3: Cross multiply
1,412,611.92x = 2,119,544.21 × 805,378.01 - Step 4: Simplify right side
1,412,611.92x = 1,707,034,289,372.55 - Step 5: Solve for x
x = 1,707,034,289,372.55/1,412,611.92 - Step 6: Final answer
x = 1,208,424.10
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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.