Finding the Fourth Proportional to 2,190,056.31, 3,022,245.57 and 1,223,199.99
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Solution
The fourth proportional to 2,190,056.31, 3,022,245.57 and 1,223,199.99 is: 1,687,998.04
Step by Step Solution
- Step 1: Write the proportion equation
2,190,056.31 : 3,022,245.57 = 1,223,199.99 : x - Step 2: Convert to fraction form
2,190,056.31/3,022,245.57 = 1,223,199.99/x - Step 3: Cross multiply
2,190,056.31x = 3,022,245.57 × 1,223,199.99 - Step 4: Simplify right side
2,190,056.31x = 3,696,810,751,001.54 - Step 5: Solve for x
x = 3,696,810,751,001.54/2,190,056.31 - Step 6: Final answer
x = 1,687,998.04
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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.