Finding the Fourth Proportional to 830,402.28, 1,245,997.08 and 494,107.29
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Solution
The fourth proportional to 830,402.28, 1,245,997.08 and 494,107.29 is: 741,395.17
Step by Step Solution
- Step 1: Write the proportion equation
830,402.28 : 1,245,997.08 = 494,107.29 : x - Step 2: Convert to fraction form
830,402.28/1,245,997.08 = 494,107.29/x - Step 3: Cross multiply
830,402.28x = 1,245,997.08 × 494,107.29 - Step 4: Simplify right side
830,402.28x = 615,656,240,546.71 - Step 5: Solve for x
x = 615,656,240,546.71/830,402.28 - Step 6: Final answer
x = 741,395.17
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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.