Finding the Fourth Proportional to 787,422.36, 1,181,321.69 and 254,943.98
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Solution
The fourth proportional to 787,422.36, 1,181,321.69 and 254,943.98 is: 382,476.88
Step by Step Solution
- Step 1: Write the proportion equation
787,422.36 : 1,181,321.69 = 254,943.98 : x - Step 2: Convert to fraction form
787,422.36/1,181,321.69 = 254,943.98/x - Step 3: Cross multiply
787,422.36x = 1,181,321.69 × 254,943.98 - Step 4: Simplify right side
787,422.36x = 301,170,846,127.60 - Step 5: Solve for x
x = 301,170,846,127.60/787,422.36 - Step 6: Final answer
x = 382,476.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.