Finding the Fourth Proportional to 756,400.20, 1,134,600.30 and 543,823.80
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Solution
The fourth proportional to 756,400.20, 1,134,600.30 and 543,823.80 is: 815,735.70
Step by Step Solution
- Step 1: Write the proportion equation
756,400.20 : 1,134,600.30 = 543,823.80 : x - Step 2: Convert to fraction form
756,400.20/1,134,600.30 = 543,823.80/x - Step 3: Cross multiply
756,400.20x = 1,134,600.30 × 543,823.80 - Step 4: Simplify right side
756,400.20x = 617,022,646,627.14 - Step 5: Solve for x
x = 617,022,646,627.14/756,400.20 - Step 6: Final answer
x = 815,735.70
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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.