Finding the Fourth Proportional to 554,624.87, 765,316.49 and 312,893.33
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Solution
The fourth proportional to 554,624.87, 765,316.49 and 312,893.33 is: 431,755.65
Step by Step Solution
- Step 1: Write the proportion equation
554,624.87 : 765,316.49 = 312,893.33 : x - Step 2: Convert to fraction form
554,624.87/765,316.49 = 312,893.33/x - Step 3: Cross multiply
554,624.87x = 765,316.49 × 312,893.33 - Step 4: Simplify right side
554,624.87x = 239,462,419,668.96 - Step 5: Solve for x
x = 239,462,419,668.96/554,624.87 - Step 6: Final answer
x = 431,755.65
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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.