Finding the Fourth Proportional to 979,713.09, 1,351,992.20 and 549,982.17
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Solution
The fourth proportional to 979,713.09, 1,351,992.20 and 549,982.17 is: 758,968.73
Step by Step Solution
- Step 1: Write the proportion equation
979,713.09 : 1,351,992.20 = 549,982.17 : x - Step 2: Convert to fraction form
979,713.09/1,351,992.20 = 549,982.17/x - Step 3: Cross multiply
979,713.09x = 1,351,992.20 × 549,982.17 - Step 4: Simplify right side
979,713.09x = 743,571,601,229.16 - Step 5: Solve for x
x = 743,571,601,229.16/979,713.09 - Step 6: Final answer
x = 758,968.73
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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.