Finding the Fourth Proportional to 1,222,283.36, 1,686,725.62 and 678,387.24
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Solution
The fourth proportional to 1,222,283.36, 1,686,725.62 and 678,387.24 is: 936,160.28
Step by Step Solution
- Step 1: Write the proportion equation
1,222,283.36 : 1,686,725.62 = 678,387.24 : x - Step 2: Convert to fraction form
1,222,283.36/1,686,725.62 = 678,387.24/x - Step 3: Cross multiply
1,222,283.36x = 1,686,725.62 × 678,387.24 - Step 4: Simplify right side
1,222,283.36x = 1,144,253,137,989.09 - Step 5: Solve for x
x = 1,144,253,137,989.09/1,222,283.36 - Step 6: Final answer
x = 936,160.28
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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.