Finding the Fourth Proportional to 644,852.14, 889,896.38 and 358,372.15
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Solution
The fourth proportional to 644,852.14, 889,896.38 and 358,372.15 is: 494,553.80
Step by Step Solution
- Step 1: Write the proportion equation
644,852.14 : 889,896.38 = 358,372.15 : x - Step 2: Convert to fraction form
644,852.14/889,896.38 = 358,372.15/x - Step 3: Cross multiply
644,852.14x = 889,896.38 × 358,372.15 - Step 4: Simplify right side
644,852.14x = 318,914,074,961.22 - Step 5: Solve for x
x = 318,914,074,961.22/644,852.14 - Step 6: Final answer
x = 494,553.80
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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.