Finding the Fourth Proportional to 2,131,663.39, 3,191,765.28 and 1,623,805
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Solution
The fourth proportional to 2,131,663.39, 3,191,765.28 and 1,623,805 is: 2,431,342.79
Step by Step Solution
- Step 1: Write the proportion equation
2,131,663.39 : 3,191,765.28 = 1,623,805 : x - Step 2: Convert to fraction form
2,131,663.39/3,191,765.28 = 1,623,805/x - Step 3: Cross multiply
2,131,663.39x = 3,191,765.28 × 1,623,805 - Step 4: Simplify right side
2,131,663.39x = 5,182,804,420,490.40 - Step 5: Solve for x
x = 5,182,804,420,490.40/2,131,663.39 - Step 6: Final answer
x = 2,431,342.79
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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.