Finding the Fourth Proportional to 4,157,639.37, 6,236,474.38 and 1,278,986.24
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Solution
The fourth proportional to 4,157,639.37, 6,236,474.38 and 1,278,986.24 is: 1,918,484.08
Step by Step Solution
- Step 1: Write the proportion equation
4,157,639.37 : 6,236,474.38 = 1,278,986.24 : x - Step 2: Convert to fraction form
4,157,639.37/6,236,474.38 = 1,278,986.24/x - Step 3: Cross multiply
4,157,639.37x = 6,236,474.38 × 1,278,986.24 - Step 4: Simplify right side
4,157,639.37x = 7,976,364,930,526.25 - Step 5: Solve for x
x = 7,976,364,930,526.25/4,157,639.37 - Step 6: Final answer
x = 1,918,484.08
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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.