Finding the Fourth Proportional to 874,069.94, 1,206,237.20 and 486,911.49
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Solution
The fourth proportional to 874,069.94, 1,206,237.20 and 486,911.49 is: 671,949.38
Step by Step Solution
- Step 1: Write the proportion equation
874,069.94 : 1,206,237.20 = 486,911.49 : x - Step 2: Convert to fraction form
874,069.94/1,206,237.20 = 486,911.49/x - Step 3: Cross multiply
874,069.94x = 1,206,237.20 × 486,911.49 - Step 4: Simplify right side
874,069.94x = 587,330,749,910.87 - Step 5: Solve for x
x = 587,330,749,910.87/874,069.94 - Step 6: Final answer
x = 671,949.38
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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.