Finding the Fourth Proportional to 2,168,965.80, 2,993,173.02 and 1,202,158.44
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Solution
The fourth proportional to 2,168,965.80, 2,993,173.02 and 1,202,158.44 is: 1,658,978.77
Step by Step Solution
- Step 1: Write the proportion equation
2,168,965.80 : 2,993,173.02 = 1,202,158.44 : x - Step 2: Convert to fraction form
2,168,965.80/2,993,173.02 = 1,202,158.44/x - Step 3: Cross multiply
2,168,965.80x = 2,993,173.02 × 1,202,158.44 - Step 4: Simplify right side
2,168,965.80x = 3,598,268,208,373.29 - Step 5: Solve for x
x = 3,598,268,208,373.29/2,168,965.80 - Step 6: Final answer
x = 1,658,978.77
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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.