Finding the Fourth Proportional to 1,036,649.18, 1,431,305.29 and 727,209.64
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Solution
The fourth proportional to 1,036,649.18, 1,431,305.29 and 727,209.64 is: 1,004,060.99
Step by Step Solution
- Step 1: Write the proportion equation
1,036,649.18 : 1,431,305.29 = 727,209.64 : x - Step 2: Convert to fraction form
1,036,649.18/1,431,305.29 = 727,209.64/x - Step 3: Cross multiply
1,036,649.18x = 1,431,305.29 × 727,209.64 - Step 4: Simplify right side
1,036,649.18x = 1,040,859,004,671.00 - Step 5: Solve for x
x = 1,040,859,004,671.00/1,036,649.18 - Step 6: Final answer
x = 1,004,060.99
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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.