Finding the Fourth Proportional to 769,674.13, 1,062,183.10 and 430,142.38
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Solution
The fourth proportional to 769,674.13, 1,062,183.10 and 430,142.38 is: 593,614.82
Step by Step Solution
- Step 1: Write the proportion equation
769,674.13 : 1,062,183.10 = 430,142.38 : x - Step 2: Convert to fraction form
769,674.13/1,062,183.10 = 430,142.38/x - Step 3: Cross multiply
769,674.13x = 1,062,183.10 × 430,142.38 - Step 4: Simplify right side
769,674.13x = 456,889,966,629.78 - Step 5: Solve for x
x = 456,889,966,629.78/769,674.13 - Step 6: Final answer
x = 593,614.82
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1.5x scale
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.