Finding the Fourth Proportional to 2,157,187.05, 2,976,914.67 and 1,190,316.63
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Solution
The fourth proportional to 2,157,187.05, 2,976,914.67 and 1,190,316.63 is: 1,642,635.04
Step by Step Solution
- Step 1: Write the proportion equation
2,157,187.05 : 2,976,914.67 = 1,190,316.63 : x - Step 2: Convert to fraction form
2,157,187.05/2,976,914.67 = 1,190,316.63/x - Step 3: Cross multiply
2,157,187.05x = 2,976,914.67 × 1,190,316.63 - Step 4: Simplify right side
2,157,187.05x = 3,543,471,037,791.96 - Step 5: Solve for x
x = 3,543,471,037,791.96/2,157,187.05 - Step 6: Final answer
x = 1,642,635.04
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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.