Finding the Fourth Proportional to 643,564.48, 965,349.92 and 264,691.84
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Solution
The fourth proportional to 643,564.48, 965,349.92 and 264,691.84 is: 397,039.08
Step by Step Solution
- Step 1: Write the proportion equation
643,564.48 : 965,349.92 = 264,691.84 : x - Step 2: Convert to fraction form
643,564.48/965,349.92 = 264,691.84/x - Step 3: Cross multiply
643,564.48x = 965,349.92 × 264,691.84 - Step 4: Simplify right side
643,564.48x = 255,520,246,568.65 - Step 5: Solve for x
x = 255,520,246,568.65/643,564.48 - Step 6: Final answer
x = 397,039.08
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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.