Finding the Fourth Proportional to 3,042,419.40, 4,198,372.29 and 1,665,496.80
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Solution
The fourth proportional to 3,042,419.40, 4,198,372.29 and 1,665,496.80 is: 2,298,294.45
Step by Step Solution
- Step 1: Write the proportion equation
3,042,419.40 : 4,198,372.29 = 1,665,496.80 : x - Step 2: Convert to fraction form
3,042,419.40/4,198,372.29 = 1,665,496.80/x - Step 3: Cross multiply
3,042,419.40x = 4,198,372.29 × 1,665,496.80 - Step 4: Simplify right side
3,042,419.40x = 6,992,375,614,203.67 - Step 5: Solve for x
x = 6,992,375,614,203.67/3,042,419.40 - Step 6: Final answer
x = 2,298,294.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.