Finding the Fourth Proportional to 827,234.70, 1,240,852.05 and 661,346.70
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Solution
The fourth proportional to 827,234.70, 1,240,852.05 and 661,346.70 is: 992,020.05
Step by Step Solution
- Step 1: Write the proportion equation
827,234.70 : 1,240,852.05 = 661,346.70 : x - Step 2: Convert to fraction form
827,234.70/1,240,852.05 = 661,346.70/x - Step 3: Cross multiply
827,234.70x = 1,240,852.05 × 661,346.70 - Step 4: Simplify right side
827,234.70x = 820,633,408,455.74 - Step 5: Solve for x
x = 820,633,408,455.74/827,234.70 - Step 6: Final answer
x = 992,020.05
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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.