Finding the Fourth Proportional to 866,137.80, 1,299,206.70 and 547,273.20
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Solution
The fourth proportional to 866,137.80, 1,299,206.70 and 547,273.20 is: 820,909.80
Step by Step Solution
- Step 1: Write the proportion equation
866,137.80 : 1,299,206.70 = 547,273.20 : x - Step 2: Convert to fraction form
866,137.80/1,299,206.70 = 547,273.20/x - Step 3: Cross multiply
866,137.80x = 1,299,206.70 × 547,273.20 - Step 4: Simplify right side
866,137.80x = 711,021,008,170.44 - Step 5: Solve for x
x = 711,021,008,170.44/866,137.80 - Step 6: Final answer
x = 820,909.80
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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.