Finding the Fourth Proportional to 1,517,845.20, 2,277,642.60 and 571,894.80
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Solution
The fourth proportional to 1,517,845.20, 2,277,642.60 and 571,894.80 is: 858,171.81
Step by Step Solution
- Step 1: Write the proportion equation
1,517,845.20 : 2,277,642.60 = 571,894.80 : x - Step 2: Convert to fraction form
1,517,845.20/2,277,642.60 = 571,894.80/x - Step 3: Cross multiply
1,517,845.20x = 2,277,642.60 × 571,894.80 - Step 4: Simplify right side
1,517,845.20x = 1,302,571,959,198.48 - Step 5: Solve for x
x = 1,302,571,959,198.48/1,517,845.20 - Step 6: Final answer
x = 858,171.81
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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.