Finding the Fourth Proportional to 641,992.47, 963,176.19 and 286,923.43
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Solution
The fourth proportional to 641,992.47, 963,176.19 and 286,923.43 is: 430,468.94
Step by Step Solution
- Step 1: Write the proportion equation
641,992.47 : 963,176.19 = 286,923.43 : x - Step 2: Convert to fraction form
641,992.47/963,176.19 = 286,923.43/x - Step 3: Cross multiply
641,992.47x = 963,176.19 × 286,923.43 - Step 4: Simplify right side
641,992.47x = 276,357,816,129.13 - Step 5: Solve for x
x = 276,357,816,129.13/641,992.47 - Step 6: Final answer
x = 430,468.94
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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.