Finding the Fourth Proportional to 3,670,406.20, 5,505,609.30 and 2,657,387.80
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Solution
The fourth proportional to 3,670,406.20, 5,505,609.30 and 2,657,387.80 is: 3,986,081.70
Step by Step Solution
- Step 1: Write the proportion equation
3,670,406.20 : 5,505,609.30 = 2,657,387.80 : x - Step 2: Convert to fraction form
3,670,406.20/5,505,609.30 = 2,657,387.80/x - Step 3: Cross multiply
3,670,406.20x = 5,505,609.30 × 2,657,387.80 - Step 4: Simplify right side
3,670,406.20x = 14,630,538,985,386.54 - Step 5: Solve for x
x = 14,630,538,985,386.54/3,670,406.20 - Step 6: Final answer
x = 3,986,081.70
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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.