Finding the Fourth Proportional to 694,136.70, 1,041,205.05 and 320,159.70
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Solution
The fourth proportional to 694,136.70, 1,041,205.05 and 320,159.70 is: 480,239.55
Step by Step Solution
- Step 1: Write the proportion equation
694,136.70 : 1,041,205.05 = 320,159.70 : x - Step 2: Convert to fraction form
694,136.70/1,041,205.05 = 320,159.70/x - Step 3: Cross multiply
694,136.70x = 1,041,205.05 × 320,159.70 - Step 4: Simplify right side
694,136.70x = 333,351,896,446.49 - Step 5: Solve for x
x = 333,351,896,446.49/694,136.70 - Step 6: Final answer
x = 480,239.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.