Finding the Fourth Proportional to 644,823.92, 889,786.35 and 372,850.65
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Solution
The fourth proportional to 644,823.92, 889,786.35 and 372,850.65 is: 514,493.04
Step by Step Solution
- Step 1: Write the proportion equation
644,823.92 : 889,786.35 = 372,850.65 : x - Step 2: Convert to fraction form
644,823.92/889,786.35 = 372,850.65/x - Step 3: Cross multiply
644,823.92x = 889,786.35 × 372,850.65 - Step 4: Simplify right side
644,823.92x = 331,757,418,958.63 - Step 5: Solve for x
x = 331,757,418,958.63/644,823.92 - Step 6: Final answer
x = 514,493.04
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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.