Finding the Fourth Proportional to 1,187,907.20, 1,779,441.60 and 737,244.80
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Solution
The fourth proportional to 1,187,907.20, 1,779,441.60 and 737,244.80 is: 1,104,365.78
Step by Step Solution
- Step 1: Write the proportion equation
1,187,907.20 : 1,779,441.60 = 737,244.80 : x - Step 2: Convert to fraction form
1,187,907.20/1,779,441.60 = 737,244.80/x - Step 3: Cross multiply
1,187,907.20x = 1,779,441.60 × 737,244.80 - Step 4: Simplify right side
1,187,907.20x = 1,311,884,066,503.68 - Step 5: Solve for x
x = 1,311,884,066,503.68/1,187,907.20 - Step 6: Final answer
x = 1,104,365.78
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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.