Finding the Fourth Proportional to 2,171,716.56, 2,997,328.62 and 1,205,157.36
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Solution
The fourth proportional to 2,171,716.56, 2,997,328.62 and 1,205,157.36 is: 1,663,316.80
Step by Step Solution
- Step 1: Write the proportion equation
2,171,716.56 : 2,997,328.62 = 1,205,157.36 : x - Step 2: Convert to fraction form
2,171,716.56/2,997,328.62 = 1,205,157.36/x - Step 3: Cross multiply
2,171,716.56x = 2,997,328.62 × 1,205,157.36 - Step 4: Simplify right side
2,171,716.56x = 3,612,252,646,731.64 - Step 5: Solve for x
x = 3,612,252,646,731.64/2,171,716.56 - Step 6: Final answer
x = 1,663,316.80
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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.