Finding the Fourth Proportional to 415,824.92, 620,729.36 and 365,379.74
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Solution
The fourth proportional to 415,824.92, 620,729.36 and 365,379.74 is: 545,426.50
Step by Step Solution
- Step 1: Write the proportion equation
415,824.92 : 620,729.36 = 365,379.74 : x - Step 2: Convert to fraction form
415,824.92/620,729.36 = 365,379.74/x - Step 3: Cross multiply
415,824.92x = 620,729.36 × 365,379.74 - Step 4: Simplify right side
415,824.92x = 226,801,932,167.17 - Step 5: Solve for x
x = 226,801,932,167.17/415,824.92 - Step 6: Final answer
x = 545,426.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.