Finding the Fourth Proportional to 780,397.34, 1,170,596.47 and 219,431.84
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Solution
The fourth proportional to 780,397.34, 1,170,596.47 and 219,431.84 is: 329,147.89
Step by Step Solution
- Step 1: Write the proportion equation
780,397.34 : 1,170,596.47 = 219,431.84 : x - Step 2: Convert to fraction form
780,397.34/1,170,596.47 = 219,431.84/x - Step 3: Cross multiply
780,397.34x = 1,170,596.47 × 219,431.84 - Step 4: Simplify right side
780,397.34x = 256,866,137,309.61 - Step 5: Solve for x
x = 256,866,137,309.61/780,397.34 - Step 6: Final answer
x = 329,147.89
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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.