Finding the Fourth Proportional to 494,355.30, 682,215.68 and 290,414.81
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Solution
The fourth proportional to 494,355.30, 682,215.68 and 290,414.81 is: 400,775.59
Step by Step Solution
- Step 1: Write the proportion equation
494,355.30 : 682,215.68 = 290,414.81 : x - Step 2: Convert to fraction form
494,355.30/682,215.68 = 290,414.81/x - Step 3: Cross multiply
494,355.30x = 682,215.68 × 290,414.81 - Step 4: Simplify right side
494,355.30x = 198,125,537,086.22 - Step 5: Solve for x
x = 198,125,537,086.22/494,355.30 - Step 6: Final answer
x = 400,775.59
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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.