Finding the Fourth Proportional to 1,511,634.11, 2,267,437.05 and 612,862.20
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Solution
The fourth proportional to 1,511,634.11, 2,267,437.05 and 612,862.20 is: 919,287.58
Step by Step Solution
- Step 1: Write the proportion equation
1,511,634.11 : 2,267,437.05 = 612,862.20 : x - Step 2: Convert to fraction form
1,511,634.11/2,267,437.05 = 612,862.20/x - Step 3: Cross multiply
1,511,634.11x = 2,267,437.05 × 612,862.20 - Step 4: Simplify right side
1,511,634.11x = 1,389,626,458,824.51 - Step 5: Solve for x
x = 1,389,626,458,824.51/1,511,634.11 - Step 6: Final answer
x = 919,287.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.