Finding the Fourth Proportional to 418,968.43, 624,967.90 and 378,610.99
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Solution
The fourth proportional to 418,968.43, 624,967.90 and 378,610.99 is: 564,767.41
Step by Step Solution
- Step 1: Write the proportion equation
418,968.43 : 624,967.90 = 378,610.99 : x - Step 2: Convert to fraction form
418,968.43/624,967.90 = 378,610.99/x - Step 3: Cross multiply
418,968.43x = 624,967.90 × 378,610.99 - Step 4: Simplify right side
418,968.43x = 236,619,715,337.22 - Step 5: Solve for x
x = 236,619,715,337.22/418,968.43 - Step 6: Final answer
x = 564,767.41
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.