Finding the Fourth Proportional to 455,027.20, 682,686.60 and 305,436.40
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Solution
The fourth proportional to 455,027.20, 682,686.60 and 305,436.40 is: 458,252.47
Step by Step Solution
- Step 1: Write the proportion equation
455,027.20 : 682,686.60 = 305,436.40 : x - Step 2: Convert to fraction form
455,027.20/682,686.60 = 305,436.40/x - Step 3: Cross multiply
455,027.20x = 682,686.60 × 305,436.40 - Step 4: Simplify right side
455,027.20x = 208,517,337,432.24 - Step 5: Solve for x
x = 208,517,337,432.24/455,027.20 - Step 6: Final answer
x = 458,252.47
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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.