Finding the Fourth Proportional to 739.78, 1,020.14 and 444.99
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Solution
The fourth proportional to 739.78, 1,020.14 and 444.99 is: 613.64
Step by Step Solution
- Step 1: Write the proportion equation
739.78 : 1,020.14 = 444.99 : x - Step 2: Convert to fraction form
739.78/1,020.14 = 444.99/x - Step 3: Cross multiply
739.78x = 1,020.14 × 444.99 - Step 4: Simplify right side
739.78x = 453,957.87 - Step 5: Solve for x
x = 453,957.87/739.78 - Step 6: Final answer
x = 613.64
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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.