Finding the Fourth Proportional to 979,717.86, 1,351,935.98 and 549,914.94
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Solution
The fourth proportional to 979,717.86, 1,351,935.98 and 549,914.94 is: 758,840.71
Step by Step Solution
- Step 1: Write the proportion equation
979,717.86 : 1,351,935.98 = 549,914.94 : x - Step 2: Convert to fraction form
979,717.86/1,351,935.98 = 549,914.94/x - Step 3: Cross multiply
979,717.86x = 1,351,935.98 × 549,914.94 - Step 4: Simplify right side
979,717.86x = 743,449,787,940.65 - Step 5: Solve for x
x = 743,449,787,940.65/979,717.86 - Step 6: Final answer
x = 758,840.71
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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.