Finding the Fourth Proportional to 1,379,879.09, 2,069,673.07 and 369,103.05
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Solution
The fourth proportional to 1,379,879.09, 2,069,673.07 and 369,103.05 is: 553,615.64
Step by Step Solution
- Step 1: Write the proportion equation
1,379,879.09 : 2,069,673.07 = 369,103.05 : x - Step 2: Convert to fraction form
1,379,879.09/2,069,673.07 = 369,103.05/x - Step 3: Cross multiply
1,379,879.09x = 2,069,673.07 × 369,103.05 - Step 4: Simplify right side
1,379,879.09x = 763,922,648,230.13 - Step 5: Solve for x
x = 763,922,648,230.13/1,379,879.09 - Step 6: Final answer
x = 553,615.64
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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.