Finding the Fourth Proportional to 612,220.68, 918,642.06 and 275,193.45
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Solution
The fourth proportional to 612,220.68, 918,642.06 and 275,193.45 is: 412,929.99
Step by Step Solution
- Step 1: Write the proportion equation
612,220.68 : 918,642.06 = 275,193.45 : x - Step 2: Convert to fraction form
612,220.68/918,642.06 = 275,193.45/x - Step 3: Cross multiply
612,220.68x = 918,642.06 × 275,193.45 - Step 4: Simplify right side
612,220.68x = 252,804,277,806.51 - Step 5: Solve for x
x = 252,804,277,806.51/612,220.68 - Step 6: Final answer
x = 412,929.99
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1.5x scale
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.