Finding the Fourth Proportional to 667,349.13, 920,937.21 and 361,418.49
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Solution
The fourth proportional to 667,349.13, 920,937.21 and 361,418.49 is: 498,755.03
Step by Step Solution
- Step 1: Write the proportion equation
667,349.13 : 920,937.21 = 361,418.49 : x - Step 2: Convert to fraction form
667,349.13/920,937.21 = 361,418.49/x - Step 3: Cross multiply
667,349.13x = 920,937.21 × 361,418.49 - Step 4: Simplify right side
667,349.13x = 332,843,735,823.01 - Step 5: Solve for x
x = 332,843,735,823.01/667,349.13 - Step 6: Final answer
x = 498,755.03
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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.