Finding the Fourth Proportional to 719,513.97, 1,079,082.87 and 213,938.79
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Solution
The fourth proportional to 719,513.97, 1,079,082.87 and 213,938.79 is: 320,852.26
Step by Step Solution
- Step 1: Write the proportion equation
719,513.97 : 1,079,082.87 = 213,938.79 : x - Step 2: Convert to fraction form
719,513.97/1,079,082.87 = 213,938.79/x - Step 3: Cross multiply
719,513.97x = 1,079,082.87 × 213,938.79 - Step 4: Simplify right side
719,513.97x = 230,857,683,517.53 - Step 5: Solve for x
x = 230,857,683,517.53/719,513.97 - Step 6: Final answer
x = 320,852.26
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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.