Finding the Fourth Proportional to 751.73, 1,037.21 and 456.99
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Solution
The fourth proportional to 751.73, 1,037.21 and 456.99 is: 630.54
Step by Step Solution
- Step 1: Write the proportion equation
751.73 : 1,037.21 = 456.99 : x - Step 2: Convert to fraction form
751.73/1,037.21 = 456.99/x - Step 3: Cross multiply
751.73x = 1,037.21 × 456.99 - Step 4: Simplify right side
751.73x = 473,992.31 - Step 5: Solve for x
x = 473,992.31/751.73 - Step 6: Final answer
x = 630.54
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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.