Finding the Fourth Proportional to 694,041.20, 957,770.30 and 388,114.08
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Solution
The fourth proportional to 694,041.20, 957,770.30 and 388,114.08 is: 535,593.76
Step by Step Solution
- Step 1: Write the proportion equation
694,041.20 : 957,770.30 = 388,114.08 : x - Step 2: Convert to fraction form
694,041.20/957,770.30 = 388,114.08/x - Step 3: Cross multiply
694,041.20x = 957,770.30 × 388,114.08 - Step 4: Simplify right side
694,041.20x = 371,724,136,895.25 - Step 5: Solve for x
x = 371,724,136,895.25/694,041.20 - Step 6: Final answer
x = 535,593.76
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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.