Finding the Fourth Proportional to 4,087,687.92, 5,640,739.29 and 2,455,125.18
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Solution
The fourth proportional to 4,087,687.92, 5,640,739.29 and 2,455,125.18 is: 3,387,910.56
Step by Step Solution
- Step 1: Write the proportion equation
4,087,687.92 : 5,640,739.29 = 2,455,125.18 : x - Step 2: Convert to fraction form
4,087,687.92/5,640,739.29 = 2,455,125.18/x - Step 3: Cross multiply
4,087,687.92x = 5,640,739.29 × 2,455,125.18 - Step 4: Simplify right side
4,087,687.92x = 13,848,721,064,694.32 - Step 5: Solve for x
x = 13,848,721,064,694.32/4,087,687.92 - Step 6: Final answer
x = 3,387,910.56
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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.