Finding the Fourth Proportional to 4,319,362.75, 6,480,109.78 and 1,286,716.83
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Solution
The fourth proportional to 4,319,362.75, 6,480,109.78 and 1,286,716.83 is: 1,930,392.69
Step by Step Solution
- Step 1: Write the proportion equation
4,319,362.75 : 6,480,109.78 = 1,286,716.83 : x - Step 2: Convert to fraction form
4,319,362.75/6,480,109.78 = 1,286,716.83/x - Step 3: Cross multiply
4,319,362.75x = 6,480,109.78 × 1,286,716.83 - Step 4: Simplify right side
4,319,362.75x = 8,338,066,281,773.05 - Step 5: Solve for x
x = 8,338,066,281,773.05/4,319,362.75 - Step 6: Final answer
x = 1,930,392.69
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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.