Finding the Fourth Proportional to 1,620,615.74, 2,431,187.42 and 756,914.36
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Solution
The fourth proportional to 1,620,615.74, 2,431,187.42 and 756,914.36 is: 1,135,494.75
Step by Step Solution
- Step 1: Write the proportion equation
1,620,615.74 : 2,431,187.42 = 756,914.36 : x - Step 2: Convert to fraction form
1,620,615.74/2,431,187.42 = 756,914.36/x - Step 3: Cross multiply
1,620,615.74x = 2,431,187.42 × 756,914.36 - Step 4: Simplify right side
1,620,615.74x = 1,840,200,654,108.84 - Step 5: Solve for x
x = 1,840,200,654,108.84/1,620,615.74 - Step 6: Final answer
x = 1,135,494.75
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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.