Finding the Fourth Proportional to 1,343,108.10, 2,016,217.35 and 811,229.70
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Solution
The fourth proportional to 1,343,108.10, 2,016,217.35 and 811,229.70 is: 1,217,783.88
Step by Step Solution
- Step 1: Write the proportion equation
1,343,108.10 : 2,016,217.35 = 811,229.70 : x - Step 2: Convert to fraction form
1,343,108.10/2,016,217.35 = 811,229.70/x - Step 3: Cross multiply
1,343,108.10x = 2,016,217.35 × 811,229.70 - Step 4: Simplify right side
1,343,108.10x = 1,635,615,395,975.30 - Step 5: Solve for x
x = 1,635,615,395,975.30/1,343,108.10 - Step 6: Final answer
x = 1,217,783.88
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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.