Finding the Fourth Proportional to 512,928.80, 768,778.80 and 263,482.40
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Solution
The fourth proportional to 512,928.80, 768,778.80 and 263,482.40 is: 394,907.99
Step by Step Solution
- Step 1: Write the proportion equation
512,928.80 : 768,778.80 = 263,482.40 : x - Step 2: Convert to fraction form
512,928.80/768,778.80 = 263,482.40/x - Step 3: Cross multiply
512,928.80x = 768,778.80 × 263,482.40 - Step 4: Simplify right side
512,928.80x = 202,559,683,293.12 - Step 5: Solve for x
x = 202,559,683,293.12/512,928.80 - Step 6: Final answer
x = 394,907.99
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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.