Finding the Fourth Proportional to 1,712,198.40, 2,565,532.80 and 1,079,980.80
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Solution
The fourth proportional to 1,712,198.40, 2,565,532.80 and 1,079,980.80 is: 1,618,227.28
Step by Step Solution
- Step 1: Write the proportion equation
1,712,198.40 : 2,565,532.80 = 1,079,980.80 : x - Step 2: Convert to fraction form
1,712,198.40/2,565,532.80 = 1,079,980.80/x - Step 3: Cross multiply
1,712,198.40x = 2,565,532.80 × 1,079,980.80 - Step 4: Simplify right side
1,712,198.40x = 2,770,726,165,770.24 - Step 5: Solve for x
x = 2,770,726,165,770.24/1,712,198.40 - Step 6: Final answer
x = 1,618,227.28
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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.