Finding the Fourth Proportional to 512,135.20, 767,546.70 and 455,710.60
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Solution
The fourth proportional to 512,135.20, 767,546.70 and 455,710.60 is: 682,982.09
Step by Step Solution
- Step 1: Write the proportion equation
512,135.20 : 767,546.70 = 455,710.60 : x - Step 2: Convert to fraction form
512,135.20/767,546.70 = 455,710.60/x - Step 3: Cross multiply
512,135.20x = 767,546.70 × 455,710.60 - Step 4: Simplify right side
512,135.20x = 349,779,167,185.02 - Step 5: Solve for x
x = 349,779,167,185.02/512,135.20 - Step 6: Final answer
x = 682,982.09
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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.