Finding the Fourth Proportional to 528,576.91, 729,425.77 and 299,129.94
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Solution
The fourth proportional to 528,576.91, 729,425.77 and 299,129.94 is: 412,793.45
Step by Step Solution
- Step 1: Write the proportion equation
528,576.91 : 729,425.77 = 299,129.94 : x - Step 2: Convert to fraction form
528,576.91/729,425.77 = 299,129.94/x - Step 3: Cross multiply
528,576.91x = 729,425.77 × 299,129.94 - Step 4: Simplify right side
528,576.91x = 218,193,086,066.73 - Step 5: Solve for x
x = 218,193,086,066.73/528,576.91 - Step 6: Final answer
x = 412,793.45
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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.