Finding the Fourth Proportional to 730,044.69, 1,007,481.99 and 403,378.75
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Solution
The fourth proportional to 730,044.69, 1,007,481.99 and 403,378.75 is: 556,673.90
Step by Step Solution
- Step 1: Write the proportion equation
730,044.69 : 1,007,481.99 = 403,378.75 : x - Step 2: Convert to fraction form
730,044.69/1,007,481.99 = 403,378.75/x - Step 3: Cross multiply
730,044.69x = 1,007,481.99 × 403,378.75 - Step 4: Simplify right side
730,044.69x = 406,396,823,631.37 - Step 5: Solve for x
x = 406,396,823,631.37/730,044.69 - Step 6: Final answer
x = 556,673.90
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1.5x scale
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.