Finding the Fourth Proportional to 753.73, 1,039.96 and 458.99
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Solution
The fourth proportional to 753.73, 1,039.96 and 458.99 is: 633.29
Step by Step Solution
- Step 1: Write the proportion equation
753.73 : 1,039.96 = 458.99 : x - Step 2: Convert to fraction form
753.73/1,039.96 = 458.99/x - Step 3: Cross multiply
753.73x = 1,039.96 × 458.99 - Step 4: Simplify right side
753.73x = 477,331.24 - Step 5: Solve for x
x = 477,331.24/753.73 - Step 6: Final answer
x = 633.29
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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.