Finding the Fourth Proportional to 959,512.14, 1,439,275.56 and 328,431.42
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Solution
The fourth proportional to 959,512.14, 1,439,275.56 and 328,431.42 is: 492,649.65
Step by Step Solution
- Step 1: Write the proportion equation
959,512.14 : 1,439,275.56 = 328,431.42 : x - Step 2: Convert to fraction form
959,512.14/1,439,275.56 = 328,431.42/x - Step 3: Cross multiply
959,512.14x = 1,439,275.56 × 328,431.42 - Step 4: Simplify right side
959,512.14x = 472,703,315,942.10 - Step 5: Solve for x
x = 472,703,315,942.10/959,512.14 - Step 6: Final answer
x = 492,649.65
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1.5x scale
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.