Finding the Fourth Proportional to 879,217.60, 1,318,812.08 and 280,170.68
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Solution
The fourth proportional to 879,217.60, 1,318,812.08 and 280,170.68 is: 420,251.46
Step by Step Solution
- Step 1: Write the proportion equation
879,217.60 : 1,318,812.08 = 280,170.68 : x - Step 2: Convert to fraction form
879,217.60/1,318,812.08 = 280,170.68/x - Step 3: Cross multiply
879,217.60x = 1,318,812.08 × 280,170.68 - Step 4: Simplify right side
879,217.60x = 369,492,477,245.81 - Step 5: Solve for x
x = 369,492,477,245.81/879,217.60 - Step 6: Final answer
x = 420,251.46
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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.