Finding the Fourth Proportional to 437.70, 604.26 and 412.80
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Solution
The fourth proportional to 437.70, 604.26 and 412.80 is: 569.88
Step by Step Solution
- Step 1: Write the proportion equation
437.70 : 604.26 = 412.80 : x - Step 2: Convert to fraction form
437.70/604.26 = 412.80/x - Step 3: Cross multiply
437.70x = 604.26 × 412.80 - Step 4: Simplify right side
437.70x = 249,438.53 - Step 5: Solve for x
x = 249,438.53/437.70 - Step 6: Final answer
x = 569.88
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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.