Finding the Fourth Proportional to 512,164.40, 768,246.60 and 344,202.80
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Solution
The fourth proportional to 512,164.40, 768,246.60 and 344,202.80 is: 516,304.20
Step by Step Solution
- Step 1: Write the proportion equation
512,164.40 : 768,246.60 = 344,202.80 : x - Step 2: Convert to fraction form
512,164.40/768,246.60 = 344,202.80/x - Step 3: Cross multiply
512,164.40x = 768,246.60 × 344,202.80 - Step 4: Simplify right side
512,164.40x = 264,432,630,810.48 - Step 5: Solve for x
x = 264,432,630,810.48/512,164.40 - Step 6: Final answer
x = 516,304.20
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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.