Finding the Fourth Proportional to 988,533.12, 1,364,174.40 and 535,824
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Solution
The fourth proportional to 988,533.12, 1,364,174.40 and 535,824 is: 739,436.41
Step by Step Solution
- Step 1: Write the proportion equation
988,533.12 : 1,364,174.40 = 535,824 : x - Step 2: Convert to fraction form
988,533.12/1,364,174.40 = 535,824/x - Step 3: Cross multiply
988,533.12x = 1,364,174.40 × 535,824 - Step 4: Simplify right side
988,533.12x = 730,957,383,705.60 - Step 5: Solve for x
x = 730,957,383,705.60/988,533.12 - Step 6: Final answer
x = 739,436.41
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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.