Finding the Fourth Proportional to 802,734.79, 1,107,786.50 and 440,191.75
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Solution
The fourth proportional to 802,734.79, 1,107,786.50 and 440,191.75 is: 607,471.46
Step by Step Solution
- Step 1: Write the proportion equation
802,734.79 : 1,107,786.50 = 440,191.75 : x - Step 2: Convert to fraction form
802,734.79/1,107,786.50 = 440,191.75/x - Step 3: Cross multiply
802,734.79x = 1,107,786.50 × 440,191.75 - Step 4: Simplify right side
802,734.79x = 487,638,478,061.38 - Step 5: Solve for x
x = 487,638,478,061.38/802,734.79 - Step 6: Final answer
x = 607,471.46
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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.