Finding the Fourth Proportional to 4,135,657.20, 6,203,488.05 and 1,295,991.60
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Solution
The fourth proportional to 4,135,657.20, 6,203,488.05 and 1,295,991.60 is: 1,943,988.11
Step by Step Solution
- Step 1: Write the proportion equation
4,135,657.20 : 6,203,488.05 = 1,295,991.60 : x - Step 2: Convert to fraction form
4,135,657.20/6,203,488.05 = 1,295,991.60/x - Step 3: Cross multiply
4,135,657.20x = 6,203,488.05 × 1,295,991.60 - Step 4: Simplify right side
4,135,657.20x = 8,039,668,403,500.38 - Step 5: Solve for x
x = 8,039,668,403,500.38/4,135,657.20 - Step 6: Final answer
x = 1,943,988.11
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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.