Finding the Fourth Proportional to 3,986,512.68, 5,979,554.64 and 1,962,739.08
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Solution
The fourth proportional to 3,986,512.68, 5,979,554.64 and 1,962,739.08 is: 2,944,003.07
Step by Step Solution
- Step 1: Write the proportion equation
3,986,512.68 : 5,979,554.64 = 1,962,739.08 : x - Step 2: Convert to fraction form
3,986,512.68/5,979,554.64 = 1,962,739.08/x - Step 3: Cross multiply
3,986,512.68x = 5,979,554.64 × 1,962,739.08 - Step 4: Simplify right side
3,986,512.68x = 11,736,305,572,923.33 - Step 5: Solve for x
x = 11,736,305,572,923.33/3,986,512.68 - Step 6: Final answer
x = 2,944,003.07
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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.