Finding the Fourth Proportional to 644,175.36, 889,092.54 and 372,254.70
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Solution
The fourth proportional to 644,175.36, 889,092.54 and 372,254.70 is: 513,786.92
Step by Step Solution
- Step 1: Write the proportion equation
644,175.36 : 889,092.54 = 372,254.70 : x - Step 2: Convert to fraction form
644,175.36/889,092.54 = 372,254.70/x - Step 3: Cross multiply
644,175.36x = 889,092.54 × 372,254.70 - Step 4: Simplify right side
644,175.36x = 330,968,876,749.94 - Step 5: Solve for x
x = 330,968,876,749.94/644,175.36 - Step 6: Final answer
x = 513,786.92
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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.