Finding the Fourth Proportional to 2,126,415.06, 3,189,942.52 and 686,615.91
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Solution
The fourth proportional to 2,126,415.06, 3,189,942.52 and 686,615.91 is: 1,030,027.17
Step by Step Solution
- Step 1: Write the proportion equation
2,126,415.06 : 3,189,942.52 = 686,615.91 : x - Step 2: Convert to fraction form
2,126,415.06/3,189,942.52 = 686,615.91/x - Step 3: Cross multiply
2,126,415.06x = 3,189,942.52 × 686,615.91 - Step 4: Simplify right side
2,126,415.06x = 2,190,265,286,217.49 - Step 5: Solve for x
x = 2,190,265,286,217.49/2,126,415.06 - Step 6: Final answer
x = 1,030,027.17
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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.