Finding the Fourth Proportional to 1,308,502.09, 1,805,512.80 and 727,649.07
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Solution
The fourth proportional to 1,308,502.09, 1,805,512.80 and 727,649.07 is: 1,004,033.33
Step by Step Solution
- Step 1: Write the proportion equation
1,308,502.09 : 1,805,512.80 = 727,649.07 : x - Step 2: Convert to fraction form
1,308,502.09/1,805,512.80 = 727,649.07/x - Step 3: Cross multiply
1,308,502.09x = 1,805,512.80 × 727,649.07 - Step 4: Simplify right side
1,308,502.09x = 1,313,779,709,793.10 - Step 5: Solve for x
x = 1,313,779,709,793.10/1,308,502.09 - Step 6: Final answer
x = 1,004,033.33
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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.