Finding the Fourth Proportional to 645,286.24, 967,211.76 and 487,001.44
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Solution
The fourth proportional to 645,286.24, 967,211.76 and 487,001.44 is: 729,960.58
Step by Step Solution
- Step 1: Write the proportion equation
645,286.24 : 967,211.76 = 487,001.44 : x - Step 2: Convert to fraction form
645,286.24/967,211.76 = 487,001.44/x - Step 3: Cross multiply
645,286.24x = 967,211.76 × 487,001.44 - Step 4: Simplify right side
645,286.24x = 471,033,519,904.93 - Step 5: Solve for x
x = 471,033,519,904.93/645,286.24 - Step 6: Final answer
x = 729,960.58
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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.