Finding the Fourth Proportional to 1,449,235.80, 2,171,229.30 and 1,239,283.80
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Solution
The fourth proportional to 1,449,235.80, 2,171,229.30 and 1,239,283.80 is: 1,856,681.50
Step by Step Solution
- Step 1: Write the proportion equation
1,449,235.80 : 2,171,229.30 = 1,239,283.80 : x - Step 2: Convert to fraction form
1,449,235.80/2,171,229.30 = 1,239,283.80/x - Step 3: Cross multiply
1,449,235.80x = 2,171,229.30 × 1,239,283.80 - Step 4: Simplify right side
1,449,235.80x = 2,690,769,297,575.34 - Step 5: Solve for x
x = 2,690,769,297,575.34/1,449,235.80 - Step 6: Final answer
x = 1,856,681.50
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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.