Finding the Fourth Proportional to 746,737.76, 1,120,250.84 and 320,213.98
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Solution
The fourth proportional to 746,737.76, 1,120,250.84 and 320,213.98 is: 480,382.81
Step by Step Solution
- Step 1: Write the proportion equation
746,737.76 : 1,120,250.84 = 320,213.98 : x - Step 2: Convert to fraction form
746,737.76/1,120,250.84 = 320,213.98/x - Step 3: Cross multiply
746,737.76x = 1,120,250.84 × 320,213.98 - Step 4: Simplify right side
746,737.76x = 358,719,980,074.74 - Step 5: Solve for x
x = 358,719,980,074.74/746,737.76 - Step 6: Final answer
x = 480,382.81
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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.