Finding the Fourth Proportional to 616,023.20, 921,786.74 and 363,424.70
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Solution
The fourth proportional to 616,023.20, 921,786.74 and 363,424.70 is: 543,810.80
Step by Step Solution
- Step 1: Write the proportion equation
616,023.20 : 921,786.74 = 363,424.70 : x - Step 2: Convert to fraction form
616,023.20/921,786.74 = 363,424.70/x - Step 3: Cross multiply
616,023.20x = 921,786.74 × 363,424.70 - Step 4: Simplify right side
616,023.20x = 335,000,064,385.26 - Step 5: Solve for x
x = 335,000,064,385.26/616,023.20 - Step 6: Final answer
x = 543,810.80
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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.