Finding the Fourth Proportional to 593.79, 889.61 and 438
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Solution
The fourth proportional to 593.79, 889.61 and 438 is: 656.20
Step by Step Solution
- Step 1: Write the proportion equation
593.79 : 889.61 = 438 : x - Step 2: Convert to fraction form
593.79/889.61 = 438/x - Step 3: Cross multiply
593.79x = 889.61 × 438 - Step 4: Simplify right side
593.79x = 389,646.99 - Step 5: Solve for x
x = 389,646.99/593.79 - Step 6: Final answer
x = 656.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.