Finding the Fourth Proportional to 6,419,270.21, 9,628,808.12 and 1,561,622.45
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Solution
The fourth proportional to 6,419,270.21, 9,628,808.12 and 1,561,622.45 is: 2,342,410.03
Step by Step Solution
- Step 1: Write the proportion equation
6,419,270.21 : 9,628,808.12 = 1,561,622.45 : x - Step 2: Convert to fraction form
6,419,270.21/9,628,808.12 = 1,561,622.45/x - Step 3: Cross multiply
6,419,270.21x = 9,628,808.12 × 1,561,622.45 - Step 4: Simplify right side
6,419,270.21x = 15,036,562,919,126.18 - Step 5: Solve for x
x = 15,036,562,919,126.18/6,419,270.21 - Step 6: Final answer
x = 2,342,410.03
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1.5x scale
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.