Finding the Fourth Proportional to 1,405,366.16, 1,939,403.10 and 760,786.18
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Solution
The fourth proportional to 1,405,366.16, 1,939,403.10 and 760,786.18 is: 1,049,883.74
Step by Step Solution
- Step 1: Write the proportion equation
1,405,366.16 : 1,939,403.10 = 760,786.18 : x - Step 2: Convert to fraction form
1,405,366.16/1,939,403.10 = 760,786.18/x - Step 3: Cross multiply
1,405,366.16x = 1,939,403.10 × 760,786.18 - Step 4: Simplify right side
1,405,366.16x = 1,475,471,075,929.16 - Step 5: Solve for x
x = 1,475,471,075,929.16/1,405,366.16 - Step 6: Final answer
x = 1,049,883.74
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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.