Finding the Fourth Proportional to 936,879.12, 1,405,108.49 and 430,954.23
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Solution
The fourth proportional to 936,879.12, 1,405,108.49 and 430,954.23 is: 646,334.66
Step by Step Solution
- Step 1: Write the proportion equation
936,879.12 : 1,405,108.49 = 430,954.23 : x - Step 2: Convert to fraction form
936,879.12/1,405,108.49 = 430,954.23/x - Step 3: Cross multiply
936,879.12x = 1,405,108.49 × 430,954.23 - Step 4: Simplify right side
936,879.12x = 605,537,450,488.80 - Step 5: Solve for x
x = 605,537,450,488.80/936,879.12 - Step 6: Final answer
x = 646,334.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.