Finding the Fourth Proportional to 1,265,006.12, 1,745,785.86 and 728,634.92
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Solution
The fourth proportional to 1,265,006.12, 1,745,785.86 and 728,634.92 is: 1,005,560.78
Step by Step Solution
- Step 1: Write the proportion equation
1,265,006.12 : 1,745,785.86 = 728,634.92 : x - Step 2: Convert to fraction form
1,265,006.12/1,745,785.86 = 728,634.92/x - Step 3: Cross multiply
1,265,006.12x = 1,745,785.86 × 728,634.92 - Step 4: Simplify right side
1,265,006.12x = 1,272,040,540,438.23 - Step 5: Solve for x
x = 1,272,040,540,438.23/1,265,006.12 - Step 6: Final answer
x = 1,005,560.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.