Finding the Fourth Proportional to 639,516.48, 882,528.44 and 353,036.49
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Solution
The fourth proportional to 639,516.48, 882,528.44 and 353,036.49 is: 487,187.98
Step by Step Solution
- Step 1: Write the proportion equation
639,516.48 : 882,528.44 = 353,036.49 : x - Step 2: Convert to fraction form
639,516.48/882,528.44 = 353,036.49/x - Step 3: Cross multiply
639,516.48x = 882,528.44 × 353,036.49 - Step 4: Simplify right side
639,516.48x = 311,564,738,370.13 - Step 5: Solve for x
x = 311,564,738,370.13/639,516.48 - Step 6: Final answer
x = 487,187.98
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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.