Finding the Fourth Proportional to 1,917,309.70, 2,646,846.17 and 1,192,390.93
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Solution
The fourth proportional to 1,917,309.70, 2,646,846.17 and 1,192,390.93 is: 1,646,095.76
Step by Step Solution
- Step 1: Write the proportion equation
1,917,309.70 : 2,646,846.17 = 1,192,390.93 : x - Step 2: Convert to fraction form
1,917,309.70/2,646,846.17 = 1,192,390.93/x - Step 3: Cross multiply
1,917,309.70x = 2,646,846.17 × 1,192,390.93 - Step 4: Simplify right side
1,917,309.70x = 3,156,075,366,213.24 - Step 5: Solve for x
x = 3,156,075,366,213.24/1,917,309.70 - Step 6: Final answer
x = 1,646,095.76
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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.