Finding the Fourth Proportional to 1,042.06, 1,438 and 593.99
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Solution
The fourth proportional to 1,042.06, 1,438 and 593.99 is: 819.68
Step by Step Solution
- Step 1: Write the proportion equation
1,042.06 : 1,438 = 593.99 : x - Step 2: Convert to fraction form
1,042.06/1,438 = 593.99/x - Step 3: Cross multiply
1,042.06x = 1,438 × 593.99 - Step 4: Simplify right side
1,042.06x = 854,157.62 - Step 5: Solve for x
x = 854,157.62/1,042.06 - Step 6: Final answer
x = 819.68
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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.