Finding the Fourth Proportional to 748,693.13, 1,033,194.23 and 409,161.38
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Solution
The fourth proportional to 748,693.13, 1,033,194.23 and 409,161.38 is: 564,641.45
Step by Step Solution
- Step 1: Write the proportion equation
748,693.13 : 1,033,194.23 = 409,161.38 : x - Step 2: Convert to fraction form
748,693.13/1,033,194.23 = 409,161.38/x - Step 3: Cross multiply
748,693.13x = 1,033,194.23 × 409,161.38 - Step 4: Simplify right side
748,693.13x = 422,743,169,743.06 - Step 5: Solve for x
x = 422,743,169,743.06/748,693.13 - Step 6: Final answer
x = 564,641.45
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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.