Finding the Fourth Proportional to 1,271,231.68, 1,752,862.08 and 811,742.08
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Solution
The fourth proportional to 1,271,231.68, 1,752,862.08 and 811,742.08 is: 1,119,286.07
Step by Step Solution
- Step 1: Write the proportion equation
1,271,231.68 : 1,752,862.08 = 811,742.08 : x - Step 2: Convert to fraction form
1,271,231.68/1,752,862.08 = 811,742.08/x - Step 3: Cross multiply
1,271,231.68x = 1,752,862.08 × 811,742.08 - Step 4: Simplify right side
1,271,231.68x = 1,422,871,910,772.33 - Step 5: Solve for x
x = 1,422,871,910,772.33/1,271,231.68 - Step 6: Final answer
x = 1,119,286.07
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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.