Finding the Fourth Proportional to 455,537.80, 683,306.70 and 306,238.60
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Solution
The fourth proportional to 455,537.80, 683,306.70 and 306,238.60 is: 459,357.90
Step by Step Solution
- Step 1: Write the proportion equation
455,537.80 : 683,306.70 = 306,238.60 : x - Step 2: Convert to fraction form
455,537.80/683,306.70 = 306,238.60/x - Step 3: Cross multiply
455,537.80x = 683,306.70 × 306,238.60 - Step 4: Simplify right side
455,537.80x = 209,254,887,178.62 - Step 5: Solve for x
x = 209,254,887,178.62/455,537.80 - Step 6: Final answer
x = 459,357.90
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1.5x scale
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.