Finding the Fourth Proportional to 509,678.48, 764,609.99 and 209,992.52
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Solution
The fourth proportional to 509,678.48, 764,609.99 and 209,992.52 is: 315,026.79
Step by Step Solution
- Step 1: Write the proportion equation
509,678.48 : 764,609.99 = 209,992.52 : x - Step 2: Convert to fraction form
509,678.48/764,609.99 = 209,992.52/x - Step 3: Cross multiply
509,678.48x = 764,609.99 × 209,992.52 - Step 4: Simplify right side
509,678.48x = 160,562,373,744.26 - Step 5: Solve for x
x = 160,562,373,744.26/509,678.48 - Step 6: Final answer
x = 315,026.79
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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.