Finding the Fourth Proportional to 721,610.24, 995,754.49 and 431,163.99
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Solution
The fourth proportional to 721,610.24, 995,754.49 and 431,163.99 is: 594,965.89
Step by Step Solution
- Step 1: Write the proportion equation
721,610.24 : 995,754.49 = 431,163.99 : x - Step 2: Convert to fraction form
721,610.24/995,754.49 = 431,163.99/x - Step 3: Cross multiply
721,610.24x = 995,754.49 × 431,163.99 - Step 4: Simplify right side
721,610.24x = 429,333,477,890.91 - Step 5: Solve for x
x = 429,333,477,890.91/721,610.24 - Step 6: Final answer
x = 594,965.89
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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.