Finding the Fourth Proportional to 747,936.72, 1,121,238.18 and 274,512.24
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Solution
The fourth proportional to 747,936.72, 1,121,238.18 and 274,512.24 is: 411,523.59
Step by Step Solution
- Step 1: Write the proportion equation
747,936.72 : 1,121,238.18 = 274,512.24 : x - Step 2: Convert to fraction form
747,936.72/1,121,238.18 = 274,512.24/x - Step 3: Cross multiply
747,936.72x = 1,121,238.18 × 274,512.24 - Step 4: Simplify right side
747,936.72x = 307,793,604,365.32 - Step 5: Solve for x
x = 307,793,604,365.32/747,936.72 - Step 6: Final answer
x = 411,523.59
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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.