Finding the Fourth Proportional to 658,163.70, 987,245.55 and 409,331.70
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Solution
The fourth proportional to 658,163.70, 987,245.55 and 409,331.70 is: 613,997.55
Step by Step Solution
- Step 1: Write the proportion equation
658,163.70 : 987,245.55 = 409,331.70 : x - Step 2: Convert to fraction form
658,163.70/987,245.55 = 409,331.70/x - Step 3: Cross multiply
658,163.70x = 987,245.55 × 409,331.70 - Step 4: Simplify right side
658,163.70x = 404,110,899,298.94 - Step 5: Solve for x
x = 404,110,899,298.94/658,163.70 - Step 6: Final answer
x = 613,997.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.