Finding the Fourth Proportional to 4,917,917.40, 7,382,405.70 and 3,800,938.20
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Solution
The fourth proportional to 4,917,917.40, 7,382,405.70 and 3,800,938.20 is: 5,705,680.99
Step by Step Solution
- Step 1: Write the proportion equation
4,917,917.40 : 7,382,405.70 = 3,800,938.20 : x - Step 2: Convert to fraction form
4,917,917.40/7,382,405.70 = 3,800,938.20/x - Step 3: Cross multiply
4,917,917.40x = 7,382,405.70 × 3,800,938.20 - Step 4: Simplify right side
4,917,917.40x = 28,060,067,833,027.74 - Step 5: Solve for x
x = 28,060,067,833,027.74/4,917,917.40 - Step 6: Final answer
x = 5,705,680.99
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1.5x scale
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.