Finding the Fourth Proportional to 590,686.20, 885,122.10 and 440,220.60
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Solution
The fourth proportional to 590,686.20, 885,122.10 and 440,220.60 is: 659,654.79
Step by Step Solution
- Step 1: Write the proportion equation
590,686.20 : 885,122.10 = 440,220.60 : x - Step 2: Convert to fraction form
590,686.20/885,122.10 = 440,220.60/x - Step 3: Cross multiply
590,686.20x = 885,122.10 × 440,220.60 - Step 4: Simplify right side
590,686.20x = 389,648,981,935.26 - Step 5: Solve for x
x = 389,648,981,935.26/590,686.20 - Step 6: Final answer
x = 659,654.79
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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.