Finding the Fourth Proportional to 1,808,206.10, 2,715,419.55 and 1,279,438.10
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Solution
The fourth proportional to 1,808,206.10, 2,715,419.55 and 1,279,438.10 is: 1,921,357.99
Step by Step Solution
- Step 1: Write the proportion equation
1,808,206.10 : 2,715,419.55 = 1,279,438.10 : x - Step 2: Convert to fraction form
1,808,206.10/2,715,419.55 = 1,279,438.10/x - Step 3: Cross multiply
1,808,206.10x = 2,715,419.55 × 1,279,438.10 - Step 4: Simplify right side
1,808,206.10x = 3,474,211,229,754.86 - Step 5: Solve for x
x = 3,474,211,229,754.86/1,808,206.10 - Step 6: Final answer
x = 1,921,357.99
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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.