Finding the Fourth Proportional to 691,995.80, 1,037,993.70 and 193,359.80
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Solution
The fourth proportional to 691,995.80, 1,037,993.70 and 193,359.80 is: 290,039.70
Step by Step Solution
- Step 1: Write the proportion equation
691,995.80 : 1,037,993.70 = 193,359.80 : x - Step 2: Convert to fraction form
691,995.80/1,037,993.70 = 193,359.80/x - Step 3: Cross multiply
691,995.80x = 1,037,993.70 × 193,359.80 - Step 4: Simplify right side
691,995.80x = 200,706,254,233.26 - Step 5: Solve for x
x = 200,706,254,233.26/691,995.80 - Step 6: Final answer
x = 290,039.70
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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.