Finding the Fourth Proportional to 762,412.94, 1,143,378.50 and 256,856.10
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Solution
The fourth proportional to 762,412.94, 1,143,378.50 and 256,856.10 is: 385,202.99
Step by Step Solution
- Step 1: Write the proportion equation
762,412.94 : 1,143,378.50 = 256,856.10 : x - Step 2: Convert to fraction form
762,412.94/1,143,378.50 = 256,856.10/x - Step 3: Cross multiply
762,412.94x = 1,143,378.50 × 256,856.10 - Step 4: Simplify right side
762,412.94x = 293,683,741,049.57 - Step 5: Solve for x
x = 293,683,741,049.57/762,412.94 - Step 6: Final answer
x = 385,202.99
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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.