Finding the Fourth Proportional to 462.74, 638.43 and 404.31
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Solution
The fourth proportional to 462.74, 638.43 and 404.31 is: 557.82
Step by Step Solution
- Step 1: Write the proportion equation
462.74 : 638.43 = 404.31 : x - Step 2: Convert to fraction form
462.74/638.43 = 404.31/x - Step 3: Cross multiply
462.74x = 638.43 × 404.31 - Step 4: Simplify right side
462.74x = 258,123.63 - Step 5: Solve for x
x = 258,123.63/462.74 - Step 6: Final answer
x = 557.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.