Finding the Fourth Proportional to 764,551.98, 1,055,108.70 and 420,414.12
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Solution
The fourth proportional to 764,551.98, 1,055,108.70 and 420,414.12 is: 580,186.31
Step by Step Solution
- Step 1: Write the proportion equation
764,551.98 : 1,055,108.70 = 420,414.12 : x - Step 2: Convert to fraction form
764,551.98/1,055,108.70 = 420,414.12/x - Step 3: Cross multiply
764,551.98x = 1,055,108.70 × 420,414.12 - Step 4: Simplify right side
764,551.98x = 443,582,595,614.84 - Step 5: Solve for x
x = 443,582,595,614.84/764,551.98 - Step 6: Final answer
x = 580,186.31
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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.