Finding the Fourth Proportional to 644,556.16, 889,239.36 and 475,192.96
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Solution
The fourth proportional to 644,556.16, 889,239.36 and 475,192.96 is: 655,583.35
Step by Step Solution
- Step 1: Write the proportion equation
644,556.16 : 889,239.36 = 475,192.96 : x - Step 2: Convert to fraction form
644,556.16/889,239.36 = 475,192.96/x - Step 3: Cross multiply
644,556.16x = 889,239.36 × 475,192.96 - Step 4: Simplify right side
644,556.16x = 422,560,283,626.91 - Step 5: Solve for x
x = 422,560,283,626.91/644,556.16 - Step 6: Final answer
x = 655,583.35
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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.