Finding the Fourth Proportional to 3,113,321.81, 4,296,377.09 and 1,755,185.09
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Solution
The fourth proportional to 3,113,321.81, 4,296,377.09 and 1,755,185.09 is: 2,422,151.47
Step by Step Solution
- Step 1: Write the proportion equation
3,113,321.81 : 4,296,377.09 = 1,755,185.09 : x - Step 2: Convert to fraction form
3,113,321.81/4,296,377.09 = 1,755,185.09/x - Step 3: Cross multiply
3,113,321.81x = 4,296,377.09 × 1,755,185.09 - Step 4: Simplify right side
3,113,321.81x = 7,540,936,992,291.67 - Step 5: Solve for x
x = 7,540,936,992,291.67/3,113,321.81 - Step 6: Final answer
x = 2,422,151.47
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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.