Finding the Fourth Proportional to 512,219.40, 768,329.10 and 344,257.80
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Solution
The fourth proportional to 512,219.40, 768,329.10 and 344,257.80 is: 516,386.70
Step by Step Solution
- Step 1: Write the proportion equation
512,219.40 : 768,329.10 = 344,257.80 : x - Step 2: Convert to fraction form
512,219.40/768,329.10 = 344,257.80/x - Step 3: Cross multiply
512,219.40x = 768,329.10 × 344,257.80 - Step 4: Simplify right side
512,219.40x = 264,503,285,641.98 - Step 5: Solve for x
x = 264,503,285,641.98/512,219.40 - Step 6: Final answer
x = 516,386.70
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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.