Finding the Fourth Proportional to 722,628.05, 995,620.86 and 477,176.94
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Solution
The fourth proportional to 722,628.05, 995,620.86 and 477,176.94 is: 657,443.78
Step by Step Solution
- Step 1: Write the proportion equation
722,628.05 : 995,620.86 = 477,176.94 : x - Step 2: Convert to fraction form
722,628.05/995,620.86 = 477,176.94/x - Step 3: Cross multiply
722,628.05x = 995,620.86 × 477,176.94 - Step 4: Simplify right side
722,628.05x = 475,087,315,374.97 - Step 5: Solve for x
x = 475,087,315,374.97/722,628.05 - Step 6: Final answer
x = 657,443.78
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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.