Finding the Fourth Proportional to 2,085,628.75, 2,878,167.68 and 1,131,772.75
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Solution
The fourth proportional to 2,085,628.75, 2,878,167.68 and 1,131,772.75 is: 1,561,846.40
Step by Step Solution
- Step 1: Write the proportion equation
2,085,628.75 : 2,878,167.68 = 1,131,772.75 : x - Step 2: Convert to fraction form
2,085,628.75/2,878,167.68 = 1,131,772.75/x - Step 3: Cross multiply
2,085,628.75x = 2,878,167.68 × 1,131,772.75 - Step 4: Simplify right side
2,085,628.75x = 3,257,431,750,154.72 - Step 5: Solve for x
x = 3,257,431,750,154.72/2,085,628.75 - Step 6: Final answer
x = 1,561,846.40
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1.5x scale
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.