Finding the Fourth Proportional to 521,771.10, 720,059.67 and 330,740.70
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Solution
The fourth proportional to 521,771.10, 720,059.67 and 330,740.70 is: 456,432.02
Step by Step Solution
- Step 1: Write the proportion equation
521,771.10 : 720,059.67 = 330,740.70 : x - Step 2: Convert to fraction form
521,771.10/720,059.67 = 330,740.70/x - Step 3: Cross multiply
521,771.10x = 720,059.67 × 330,740.70 - Step 4: Simplify right side
521,771.10x = 238,153,039,297.57 - Step 5: Solve for x
x = 238,153,039,297.57/521,771.10 - Step 6: Final answer
x = 456,432.02
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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.