Finding the Fourth Proportional to 2,190,512.06, 3,022,906.68 and 1,223,642.42
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Solution
The fourth proportional to 2,190,512.06, 3,022,906.68 and 1,223,642.42 is: 1,688,626.56
Step by Step Solution
- Step 1: Write the proportion equation
2,190,512.06 : 3,022,906.68 = 1,223,642.42 : x - Step 2: Convert to fraction form
2,190,512.06/3,022,906.68 = 1,223,642.42/x - Step 3: Cross multiply
2,190,512.06x = 3,022,906.68 × 1,223,642.42 - Step 4: Simplify right side
2,190,512.06x = 3,698,956,830,234.83 - Step 5: Solve for x
x = 3,698,956,830,234.83/2,190,512.06 - Step 6: Final answer
x = 1,688,626.56
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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.