Finding the Fourth Proportional to 4,721,021.92, 7,069,574.76 and 2,927,408.32
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Solution
The fourth proportional to 4,721,021.92, 7,069,574.76 and 2,927,408.32 is: 4,383,697.50
Step by Step Solution
- Step 1: Write the proportion equation
4,721,021.92 : 7,069,574.76 = 2,927,408.32 : x - Step 2: Convert to fraction form
4,721,021.92/7,069,574.76 = 2,927,408.32/x - Step 3: Cross multiply
4,721,021.92x = 7,069,574.76 × 2,927,408.32 - Step 4: Simplify right side
4,721,021.92x = 20,695,531,971,286 - Step 5: Solve for x
x = 20,695,531,971,286/4,721,021.92 - Step 6: Final answer
x = 4,383,697.50
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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.