Finding the Fourth Proportional to 455,020.25, 681,998.99 and 342,338.49
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Solution
The fourth proportional to 455,020.25, 681,998.99 and 342,338.49 is: 513,107.94
Step by Step Solution
- Step 1: Write the proportion equation
455,020.25 : 681,998.99 = 342,338.49 : x - Step 2: Convert to fraction form
455,020.25/681,998.99 = 342,338.49/x - Step 3: Cross multiply
455,020.25x = 681,998.99 × 342,338.49 - Step 4: Simplify right side
455,020.25x = 233,474,502,706.43 - Step 5: Solve for x
x = 233,474,502,706.43/455,020.25 - Step 6: Final answer
x = 513,107.94
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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.