Finding the Fourth Proportional to 816,426.18, 1,126,591.88 and 472,206.96
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Solution
The fourth proportional to 816,426.18, 1,126,591.88 and 472,206.96 is: 651,601.50
Step by Step Solution
- Step 1: Write the proportion equation
816,426.18 : 1,126,591.88 = 472,206.96 : x - Step 2: Convert to fraction form
816,426.18/1,126,591.88 = 472,206.96/x - Step 3: Cross multiply
816,426.18x = 1,126,591.88 × 472,206.96 - Step 4: Simplify right side
816,426.18x = 531,984,524,454.45 - Step 5: Solve for x
x = 531,984,524,454.45/816,426.18 - Step 6: Final answer
x = 651,601.50
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1.5x scale
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.