Finding the Fourth Proportional to 462.42, 638.00 and 427.46
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Solution
The fourth proportional to 462.42, 638.00 and 427.46 is: 589.75
Step by Step Solution
- Step 1: Write the proportion equation
462.42 : 638.00 = 427.46 : x - Step 2: Convert to fraction form
462.42/638.00 = 427.46/x - Step 3: Cross multiply
462.42x = 638.00 × 427.46 - Step 4: Simplify right side
462.42x = 272,714.15 - Step 5: Solve for x
x = 272,714.15/462.42 - Step 6: Final answer
x = 589.75
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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.