Finding the Fourth Proportional to 455,996.99, 628,857.41 and 274,393.58
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Solution
The fourth proportional to 455,996.99, 628,857.41 and 274,393.58 is: 378,411.34
Step by Step Solution
- Step 1: Write the proportion equation
455,996.99 : 628,857.41 = 274,393.58 : x - Step 2: Convert to fraction form
455,996.99/628,857.41 = 274,393.58/x - Step 3: Cross multiply
455,996.99x = 628,857.41 × 274,393.58 - Step 4: Simplify right side
455,996.99x = 172,554,431,523.17 - Step 5: Solve for x
x = 172,554,431,523.17/455,996.99 - Step 6: Final answer
x = 378,411.34
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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.