Finding the Fourth Proportional to 3,172,601.75, 4,378,195.89 and 1,814,474.75
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Solution
The fourth proportional to 3,172,601.75, 4,378,195.89 and 1,814,474.75 is: 2,503,978.28
Step by Step Solution
- Step 1: Write the proportion equation
3,172,601.75 : 4,378,195.89 = 1,814,474.75 : x - Step 2: Convert to fraction form
3,172,601.75/4,378,195.89 = 1,814,474.75/x - Step 3: Cross multiply
3,172,601.75x = 4,378,195.89 × 1,814,474.75 - Step 4: Simplify right side
3,172,601.75x = 7,944,125,883,886.40 - Step 5: Solve for x
x = 7,944,125,883,886.40/3,172,601.75 - Step 6: Final answer
x = 2,503,978.28
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1.5x scale
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.