Finding the Fourth Proportional to 890,136.97, 1,228,363.45 and 522,607.97
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Solution
The fourth proportional to 890,136.97, 1,228,363.45 and 522,607.97 is: 721,183.99
Step by Step Solution
- Step 1: Write the proportion equation
890,136.97 : 1,228,363.45 = 522,607.97 : x - Step 2: Convert to fraction form
890,136.97/1,228,363.45 = 522,607.97/x - Step 3: Cross multiply
890,136.97x = 1,228,363.45 × 522,607.97 - Step 4: Simplify right side
890,136.97x = 641,952,530,791.09 - Step 5: Solve for x
x = 641,952,530,791.09/890,136.97 - Step 6: Final answer
x = 721,183.99
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1.5x scale
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.