Finding the Fourth Proportional to 1,511,207.70, 2,266,811.55 and 1,422,561.30
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Solution
The fourth proportional to 1,511,207.70, 2,266,811.55 and 1,422,561.30 is: 2,133,841.95
Step by Step Solution
- Step 1: Write the proportion equation
1,511,207.70 : 2,266,811.55 = 1,422,561.30 : x - Step 2: Convert to fraction form
1,511,207.70/2,266,811.55 = 1,422,561.30/x - Step 3: Cross multiply
1,511,207.70x = 2,266,811.55 × 1,422,561.30 - Step 4: Simplify right side
1,511,207.70x = 3,224,678,385,423.01 - Step 5: Solve for x
x = 3,224,678,385,423.01/1,511,207.70 - Step 6: Final answer
x = 2,133,841.95
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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.