Finding the Fourth Proportional to 1,515,283.12, 2,091,102.16 and 826,960.24
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Solution
The fourth proportional to 1,515,283.12, 2,091,102.16 and 826,960.24 is: 1,141,211.38
Step by Step Solution
- Step 1: Write the proportion equation
1,515,283.12 : 2,091,102.16 = 826,960.24 : x - Step 2: Convert to fraction form
1,515,283.12/2,091,102.16 = 826,960.24/x - Step 3: Cross multiply
1,515,283.12x = 2,091,102.16 × 826,960.24 - Step 4: Simplify right side
1,515,283.12x = 1,729,258,344,098.12 - Step 5: Solve for x
x = 1,729,258,344,098.12/1,515,283.12 - Step 6: Final answer
x = 1,141,211.38
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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.