Finding the Fourth Proportional to 936,879.40, 1,405,108.70 and 430,954.41
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Solution
The fourth proportional to 936,879.40, 1,405,108.70 and 430,954.41 is: 646,334.83
Step by Step Solution
- Step 1: Write the proportion equation
936,879.40 : 1,405,108.70 = 430,954.41 : x - Step 2: Convert to fraction form
936,879.40/1,405,108.70 = 430,954.41/x - Step 3: Cross multiply
936,879.40x = 1,405,108.70 × 430,954.41 - Step 4: Simplify right side
936,879.40x = 605,537,790,794.37 - Step 5: Solve for x
x = 605,537,790,794.37/936,879.40 - Step 6: Final answer
x = 646,334.83
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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.