Finding the Fourth Proportional to 644,735.92, 889,744.44 and 358,250.80
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Solution
The fourth proportional to 644,735.92, 889,744.44 and 358,250.80 is: 494,391.03
Step by Step Solution
- Step 1: Write the proportion equation
644,735.92 : 889,744.44 = 358,250.80 : x - Step 2: Convert to fraction form
644,735.92/889,744.44 = 358,250.80/x - Step 3: Cross multiply
644,735.92x = 889,744.44 × 358,250.80 - Step 4: Simplify right side
644,735.92x = 318,751,657,425.55 - Step 5: Solve for x
x = 318,751,657,425.55/644,735.92 - Step 6: Final answer
x = 494,391.03
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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.