Finding the Fourth Proportional to 651,739.80, 977,609.70 and 440,232.60
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Solution
The fourth proportional to 651,739.80, 977,609.70 and 440,232.60 is: 660,348.90
Step by Step Solution
- Step 1: Write the proportion equation
651,739.80 : 977,609.70 = 440,232.60 : x - Step 2: Convert to fraction form
651,739.80/977,609.70 = 440,232.60/x - Step 3: Cross multiply
651,739.80x = 977,609.70 × 440,232.60 - Step 4: Simplify right side
651,739.80x = 430,375,660,016.22 - Step 5: Solve for x
x = 430,375,660,016.22/651,739.80 - Step 6: Final answer
x = 660,348.90
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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.