Finding the Fourth Proportional to 911,249.91, 1,257,519.87 and 503,379.81
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Solution
The fourth proportional to 911,249.91, 1,257,519.87 and 503,379.81 is: 694,661.37
Step by Step Solution
- Step 1: Write the proportion equation
911,249.91 : 1,257,519.87 = 503,379.81 : x - Step 2: Convert to fraction form
911,249.91/1,257,519.87 = 503,379.81/x - Step 3: Cross multiply
911,249.91x = 1,257,519.87 × 503,379.81 - Step 4: Simplify right side
911,249.91x = 633,010,113,231.83 - Step 5: Solve for x
x = 633,010,113,231.83/911,249.91 - Step 6: Final answer
x = 694,661.37
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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.