Finding the Fourth Proportional to 1,182,757.75, 1,632,206.36 and 638,893.55
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Solution
The fourth proportional to 1,182,757.75, 1,632,206.36 and 638,893.55 is: 881,673.46
Step by Step Solution
- Step 1: Write the proportion equation
1,182,757.75 : 1,632,206.36 = 638,893.55 : x - Step 2: Convert to fraction form
1,182,757.75/1,632,206.36 = 638,893.55/x - Step 3: Cross multiply
1,182,757.75x = 1,632,206.36 × 638,893.55 - Step 4: Simplify right side
1,182,757.75x = 1,042,806,112,478.51 - Step 5: Solve for x
x = 1,042,806,112,478.51/1,182,757.75 - Step 6: Final answer
x = 881,673.46
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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.