Finding the Fourth Proportional to 418,914.75, 628,469.33 and 138,414.99
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Solution
The fourth proportional to 418,914.75, 628,469.33 and 138,414.99 is: 207,654.60
Step by Step Solution
- Step 1: Write the proportion equation
418,914.75 : 628,469.33 = 138,414.99 : x - Step 2: Convert to fraction form
418,914.75/628,469.33 = 138,414.99/x - Step 3: Cross multiply
418,914.75x = 628,469.33 × 138,414.99 - Step 4: Simplify right side
418,914.75x = 86,989,572,192.84 - Step 5: Solve for x
x = 86,989,572,192.84/418,914.75 - Step 6: Final answer
x = 207,654.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.