Finding the Fourth Proportional to 428,611.36, 591,497.70 and 237,642.52
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Solution
The fourth proportional to 428,611.36, 591,497.70 and 237,642.52 is: 327,954.45
Step by Step Solution
- Step 1: Write the proportion equation
428,611.36 : 591,497.70 = 237,642.52 : x - Step 2: Convert to fraction form
428,611.36/591,497.70 = 237,642.52/x - Step 3: Cross multiply
428,611.36x = 591,497.70 × 237,642.52 - Step 4: Simplify right side
428,611.36x = 140,565,004,002.20 - Step 5: Solve for x
x = 140,565,004,002.20/428,611.36 - Step 6: Final answer
x = 327,954.45
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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.