Finding the Fourth Proportional to 775,318.44, 1,162,977.66 and 354,299.07
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Solution
The fourth proportional to 775,318.44, 1,162,977.66 and 354,299.07 is: 531,448.61
Step by Step Solution
- Step 1: Write the proportion equation
775,318.44 : 1,162,977.66 = 354,299.07 : x - Step 2: Convert to fraction form
775,318.44/1,162,977.66 = 354,299.07/x - Step 3: Cross multiply
775,318.44x = 1,162,977.66 × 354,299.07 - Step 4: Simplify right side
775,318.44x = 412,041,903,368.78 - Step 5: Solve for x
x = 412,041,903,368.78/775,318.44 - Step 6: Final answer
x = 531,448.61
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1.5x scale
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.