Finding the Fourth Proportional to 3,173,090.76, 4,378,840.29 and 1,722,757.14
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Solution
The fourth proportional to 3,173,090.76, 4,378,840.29 and 1,722,757.14 is: 2,377,391.30
Step by Step Solution
- Step 1: Write the proportion equation
3,173,090.76 : 4,378,840.29 = 1,722,757.14 : x - Step 2: Convert to fraction form
3,173,090.76/4,378,840.29 = 1,722,757.14/x - Step 3: Cross multiply
3,173,090.76x = 4,378,840.29 × 1,722,757.14 - Step 4: Simplify right side
3,173,090.76x = 7,543,678,374,517.17 - Step 5: Solve for x
x = 7,543,678,374,517.17/3,173,090.76 - Step 6: Final answer
x = 2,377,391.30
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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.