Finding the Fourth Proportional to 731,119.53, 1,008,857.04 and 421,122.94
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Solution
The fourth proportional to 731,119.53, 1,008,857.04 and 421,122.94 is: 581,099.02
Step by Step Solution
- Step 1: Write the proportion equation
731,119.53 : 1,008,857.04 = 421,122.94 : x - Step 2: Convert to fraction form
731,119.53/1,008,857.04 = 421,122.94/x - Step 3: Cross multiply
731,119.53x = 1,008,857.04 × 421,122.94 - Step 4: Simplify right side
731,119.53x = 424,852,840,109.21 - Step 5: Solve for x
x = 424,852,840,109.21/731,119.53 - Step 6: Final answer
x = 581,099.02
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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.