Finding the Fourth Proportional to 4,314,649.20, 6,474,306.60 and 1,918,863.60
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Solution
The fourth proportional to 4,314,649.20, 6,474,306.60 and 1,918,863.60 is: 2,879,332.87
Step by Step Solution
- Step 1: Write the proportion equation
4,314,649.20 : 6,474,306.60 = 1,918,863.60 : x - Step 2: Convert to fraction form
4,314,649.20/6,474,306.60 = 1,918,863.60/x - Step 3: Cross multiply
4,314,649.20x = 6,474,306.60 × 1,918,863.60 - Step 4: Simplify right side
4,314,649.20x = 12,423,311,269,979.76 - Step 5: Solve for x
x = 12,423,311,269,979.76/4,314,649.20 - Step 6: Final answer
x = 2,879,332.87
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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.