Finding the Fourth Proportional to 487,680.12, 673,049.34 and 280,955.70
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Solution
The fourth proportional to 487,680.12, 673,049.34 and 280,955.70 is: 387,748.12
Step by Step Solution
- Step 1: Write the proportion equation
487,680.12 : 673,049.34 = 280,955.70 : x - Step 2: Convert to fraction form
487,680.12/673,049.34 = 280,955.70/x - Step 3: Cross multiply
487,680.12x = 673,049.34 × 280,955.70 - Step 4: Simplify right side
487,680.12x = 189,097,048,454.24 - Step 5: Solve for x
x = 189,097,048,454.24/487,680.12 - Step 6: Final answer
x = 387,748.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.