Finding the Fourth Proportional to 2,085,628.13, 2,878,166.81 and 1,131,772.13
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Solution
The fourth proportional to 2,085,628.13, 2,878,166.81 and 1,131,772.13 is: 1,561,845.53
Step by Step Solution
- Step 1: Write the proportion equation
2,085,628.13 : 2,878,166.81 = 1,131,772.13 : x - Step 2: Convert to fraction form
2,085,628.13/2,878,166.81 = 1,131,772.13/x - Step 3: Cross multiply
2,085,628.13x = 2,878,166.81 × 1,131,772.13 - Step 4: Simplify right side
2,085,628.13x = 3,257,428,969,487.60 - Step 5: Solve for x
x = 3,257,428,969,487.60/2,085,628.13 - Step 6: Final answer
x = 1,561,845.53
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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.