Finding the Fourth Proportional to 1,207,365.80, 1,811,048.70 and 1,189,651.10
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Solution
The fourth proportional to 1,207,365.80, 1,811,048.70 and 1,189,651.10 is: 1,784,476.65
Step by Step Solution
- Step 1: Write the proportion equation
1,207,365.80 : 1,811,048.70 = 1,189,651.10 : x - Step 2: Convert to fraction form
1,207,365.80/1,811,048.70 = 1,189,651.10/x - Step 3: Cross multiply
1,207,365.80x = 1,811,048.70 × 1,189,651.10 - Step 4: Simplify right side
1,207,365.80x = 2,154,516,078,108.57 - Step 5: Solve for x
x = 2,154,516,078,108.57/1,207,365.80 - Step 6: Final answer
x = 1,784,476.65
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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.