Finding the Fourth Proportional to 1,216,562.12, 1,678,838.26 and 672,685.98
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Solution
The fourth proportional to 1,216,562.12, 1,678,838.26 and 672,685.98 is: 928,296.99
Step by Step Solution
- Step 1: Write the proportion equation
1,216,562.12 : 1,678,838.26 = 672,685.98 : x - Step 2: Convert to fraction form
1,216,562.12/1,678,838.26 = 672,685.98/x - Step 3: Cross multiply
1,216,562.12x = 1,678,838.26 × 672,685.98 - Step 4: Simplify right side
1,216,562.12x = 1,129,330,960,189.59 - Step 5: Solve for x
x = 1,129,330,960,189.59/1,216,562.12 - Step 6: Final answer
x = 928,296.99
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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.