Finding the Fourth Proportional to 1,808,207.10, 2,715,421.05 and 1,279,439.10
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Solution
The fourth proportional to 1,808,207.10, 2,715,421.05 and 1,279,439.10 is: 1,921,359.49
Step by Step Solution
- Step 1: Write the proportion equation
1,808,207.10 : 2,715,421.05 = 1,279,439.10 : x - Step 2: Convert to fraction form
1,808,207.10/2,715,421.05 = 1,279,439.10/x - Step 3: Cross multiply
1,808,207.10x = 2,715,421.05 × 1,279,439.10 - Step 4: Simplify right side
1,808,207.10x = 3,474,215,864,333.06 - Step 5: Solve for x
x = 3,474,215,864,333.06/1,808,207.10 - Step 6: Final answer
x = 1,921,359.49
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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.