Finding the Fourth Proportional to 1,542,049.80, 2,128,994.70 and 990,988.98
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Solution
The fourth proportional to 1,542,049.80, 2,128,994.70 and 990,988.98 is: 1,368,185.57
Step by Step Solution
- Step 1: Write the proportion equation
1,542,049.80 : 2,128,994.70 = 990,988.98 : x - Step 2: Convert to fraction form
1,542,049.80/2,128,994.70 = 990,988.98/x - Step 3: Cross multiply
1,542,049.80x = 2,128,994.70 × 990,988.98 - Step 4: Simplify right side
1,542,049.80x = 2,109,810,286,178.41 - Step 5: Solve for x
x = 2,109,810,286,178.41/1,542,049.80 - Step 6: Final answer
x = 1,368,185.57
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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.