Finding the Fourth Proportional to 4,380,991.20, 6,564,421.20 and 2,482,085.60
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Solution
The fourth proportional to 4,380,991.20, 6,564,421.20 and 2,482,085.60 is: 3,719,125.33
Step by Step Solution
- Step 1: Write the proportion equation
4,380,991.20 : 6,564,421.20 = 2,482,085.60 : x - Step 2: Convert to fraction form
4,380,991.20/6,564,421.20 = 2,482,085.60/x - Step 3: Cross multiply
4,380,991.20x = 6,564,421.20 × 2,482,085.60 - Step 4: Simplify right side
4,380,991.20x = 16,293,455,332,854.72 - Step 5: Solve for x
x = 16,293,455,332,854.72/4,380,991.20 - Step 6: Final answer
x = 3,719,125.33
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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.