Finding the Fourth Proportional to 693,393.44, 957,177.64 and 421,548.13
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Solution
The fourth proportional to 693,393.44, 957,177.64 and 421,548.13 is: 581,915.58
Step by Step Solution
- Step 1: Write the proportion equation
693,393.44 : 957,177.64 = 421,548.13 : x - Step 2: Convert to fraction form
693,393.44/957,177.64 = 421,548.13/x - Step 3: Cross multiply
693,393.44x = 957,177.64 × 421,548.13 - Step 4: Simplify right side
693,393.44x = 403,496,445,943.22 - Step 5: Solve for x
x = 403,496,445,943.22/693,393.44 - Step 6: Final answer
x = 581,915.58
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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.