Finding the Fourth Proportional to 690,212.60, 1,035,114.60 and 310,914.08
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Solution
The fourth proportional to 690,212.60, 1,035,114.60 and 310,914.08 is: 466,279.09
Step by Step Solution
- Step 1: Write the proportion equation
690,212.60 : 1,035,114.60 = 310,914.08 : x - Step 2: Convert to fraction form
690,212.60/1,035,114.60 = 310,914.08/x - Step 3: Cross multiply
690,212.60x = 1,035,114.60 × 310,914.08 - Step 4: Simplify right side
690,212.60x = 321,831,703,553.57 - Step 5: Solve for x
x = 321,831,703,553.57/690,212.60 - Step 6: Final answer
x = 466,279.09
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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.