Finding the Fourth Proportional to 1,405,511, 2,108,324.84 and 408,239
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Solution
The fourth proportional to 1,405,511, 2,108,324.84 and 408,239 is: 612,375.45
Step by Step Solution
- Step 1: Write the proportion equation
1,405,511 : 2,108,324.84 = 408,239 : x - Step 2: Convert to fraction form
1,405,511/2,108,324.84 = 408,239/x - Step 3: Cross multiply
1,405,511x = 2,108,324.84 × 408,239 - Step 4: Simplify right side
1,405,511x = 860,700,424,356.76 - Step 5: Solve for x
x = 860,700,424,356.76/1,405,511 - Step 6: Final answer
x = 612,375.45
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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.