Finding the Fourth Proportional to 813,382.29, 1,122,475.91 and 450,814.23
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Solution
The fourth proportional to 813,382.29, 1,122,475.91 and 450,814.23 is: 622,128.26
Step by Step Solution
- Step 1: Write the proportion equation
813,382.29 : 1,122,475.91 = 450,814.23 : x - Step 2: Convert to fraction form
813,382.29/1,122,475.91 = 450,814.23/x - Step 3: Cross multiply
813,382.29x = 1,122,475.91 × 450,814.23 - Step 4: Simplify right side
813,382.29x = 506,028,110,806.13 - Step 5: Solve for x
x = 506,028,110,806.13/813,382.29 - Step 6: Final answer
x = 622,128.26
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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.