Finding the Fourth Proportional to 699,045.42, 964,673.42 and 393,121.70
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Solution
The fourth proportional to 699,045.42, 964,673.42 and 393,121.70 is: 542,502.74
Step by Step Solution
- Step 1: Write the proportion equation
699,045.42 : 964,673.42 = 393,121.70 : x - Step 2: Convert to fraction form
699,045.42/964,673.42 = 393,121.70/x - Step 3: Cross multiply
699,045.42x = 964,673.42 × 393,121.70 - Step 4: Simplify right side
699,045.42x = 379,234,054,815.21 - Step 5: Solve for x
x = 379,234,054,815.21/699,045.42 - Step 6: Final answer
x = 542,502.74
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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.