Finding the Fourth Proportional to 509,613.73, 703,209.80 and 305,672.94
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Solution
The fourth proportional to 509,613.73, 703,209.80 and 305,672.94 is: 421,794.38
Step by Step Solution
- Step 1: Write the proportion equation
509,613.73 : 703,209.80 = 305,672.94 : x - Step 2: Convert to fraction form
509,613.73/703,209.80 = 305,672.94/x - Step 3: Cross multiply
509,613.73x = 703,209.80 × 305,672.94 - Step 4: Simplify right side
509,613.73x = 214,952,207,766.99 - Step 5: Solve for x
x = 214,952,207,766.99/509,613.73 - Step 6: Final answer
x = 421,794.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.