Finding the Fourth Proportional to 547,120.99, 755,091.03 and 455,077.90
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Solution
The fourth proportional to 547,120.99, 755,091.03 and 455,077.90 is: 628,060.79
Step by Step Solution
- Step 1: Write the proportion equation
547,120.99 : 755,091.03 = 455,077.90 : x - Step 2: Convert to fraction form
547,120.99/755,091.03 = 455,077.90/x - Step 3: Cross multiply
547,120.99x = 755,091.03 × 455,077.90 - Step 4: Simplify right side
547,120.99x = 343,625,240,241.24 - Step 5: Solve for x
x = 343,625,240,241.24/547,120.99 - Step 6: Final answer
x = 628,060.79
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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.