Finding the Fourth Proportional to 645,529.60, 890,812.35 and 351,170.08
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Solution
The fourth proportional to 645,529.60, 890,812.35 and 351,170.08 is: 484,604.64
Step by Step Solution
- Step 1: Write the proportion equation
645,529.60 : 890,812.35 = 351,170.08 : x - Step 2: Convert to fraction form
645,529.60/890,812.35 = 351,170.08/x - Step 3: Cross multiply
645,529.60x = 890,812.35 × 351,170.08 - Step 4: Simplify right side
645,529.60x = 312,826,639,760.43 - Step 5: Solve for x
x = 312,826,639,760.43/645,529.60 - Step 6: Final answer
x = 484,604.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.