Finding the Fourth Proportional to 512,231.40, 768,347.10 and 344,269.80
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Solution
The fourth proportional to 512,231.40, 768,347.10 and 344,269.80 is: 516,404.70
Step by Step Solution
- Step 1: Write the proportion equation
512,231.40 : 768,347.10 = 344,269.80 : x - Step 2: Convert to fraction form
512,231.40/768,347.10 = 344,269.80/x - Step 3: Cross multiply
512,231.40x = 768,347.10 × 344,269.80 - Step 4: Simplify right side
512,231.40x = 264,518,702,447.58 - Step 5: Solve for x
x = 264,518,702,447.58/512,231.40 - Step 6: Final answer
x = 516,404.70
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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.