Finding the Fourth Proportional to 547,344.09, 755,327.68 and 305,630.77
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Solution
The fourth proportional to 547,344.09, 755,327.68 and 305,630.77 is: 421,766.46
Step by Step Solution
- Step 1: Write the proportion equation
547,344.09 : 755,327.68 = 305,630.77 : x - Step 2: Convert to fraction form
547,344.09/755,327.68 = 305,630.77/x - Step 3: Cross multiply
547,344.09x = 755,327.68 × 305,630.77 - Step 4: Simplify right side
547,344.09x = 230,851,380,440.71 - Step 5: Solve for x
x = 230,851,380,440.71/547,344.09 - Step 6: Final answer
x = 421,766.46
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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.