Finding the Fourth Proportional to 547,176.12, 821,024.10 and 378,955.32
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Solution
The fourth proportional to 547,176.12, 821,024.10 and 378,955.32 is: 568,612.99
Step by Step Solution
- Step 1: Write the proportion equation
547,176.12 : 821,024.10 = 378,955.32 : x - Step 2: Convert to fraction form
547,176.12/821,024.10 = 378,955.32/x - Step 3: Cross multiply
547,176.12x = 821,024.10 × 378,955.32 - Step 4: Simplify right side
547,176.12x = 311,131,450,543.21 - Step 5: Solve for x
x = 311,131,450,543.21/547,176.12 - Step 6: Final answer
x = 568,612.99
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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.