Finding the Fourth Proportional to 920,722.24, 1,270,660.54 and 558,161.38
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Solution
The fourth proportional to 920,722.24, 1,270,660.54 and 558,161.38 is: 770,301.41
Step by Step Solution
- Step 1: Write the proportion equation
920,722.24 : 1,270,660.54 = 558,161.38 : x - Step 2: Convert to fraction form
920,722.24/1,270,660.54 = 558,161.38/x - Step 3: Cross multiply
920,722.24x = 1,270,660.54 × 558,161.38 - Step 4: Simplify right side
920,722.24x = 709,233,640,517.95 - Step 5: Solve for x
x = 709,233,640,517.95/920,722.24 - Step 6: Final answer
x = 770,301.41
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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.