Finding the Fourth Proportional to 743,620.50, 1,120,430.07 and 672,623.19
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Solution
The fourth proportional to 743,620.50, 1,120,430.07 and 672,623.19 is: 1,013,456.79
Step by Step Solution
- Step 1: Write the proportion equation
743,620.50 : 1,120,430.07 = 672,623.19 : x - Step 2: Convert to fraction form
743,620.50/1,120,430.07 = 672,623.19/x - Step 3: Cross multiply
743,620.50x = 1,120,430.07 × 672,623.19 - Step 4: Simplify right side
743,620.50x = 753,627,247,855.32 - Step 5: Solve for x
x = 753,627,247,855.32/743,620.50 - Step 6: Final answer
x = 1,013,456.79
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.