Finding the Fourth Proportional to 1,511,548.36, 2,085,869.46 and 866,506.12
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Solution
The fourth proportional to 1,511,548.36, 2,085,869.46 and 866,506.12 is: 1,195,739.88
Step by Step Solution
- Step 1: Write the proportion equation
1,511,548.36 : 2,085,869.46 = 866,506.12 : x - Step 2: Convert to fraction form
1,511,548.36/2,085,869.46 = 866,506.12/x - Step 3: Cross multiply
1,511,548.36x = 2,085,869.46 × 866,506.12 - Step 4: Simplify right side
1,511,548.36x = 1,807,418,652,611.10 - Step 5: Solve for x
x = 1,807,418,652,611.10/1,511,548.36 - Step 6: Final answer
x = 1,195,739.88
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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.