Finding the Fourth Proportional to 1,216,118.91, 1,678,219.38 and 672,277.62
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Solution
The fourth proportional to 1,216,118.91, 1,678,219.38 and 672,277.62 is: 927,729.45
Step by Step Solution
- Step 1: Write the proportion equation
1,216,118.91 : 1,678,219.38 = 672,277.62 : x - Step 2: Convert to fraction form
1,216,118.91/1,678,219.38 = 672,277.62/x - Step 3: Cross multiply
1,216,118.91x = 1,678,219.38 × 672,277.62 - Step 4: Simplify right side
1,216,118.91x = 1,128,229,330,624.28 - Step 5: Solve for x
x = 1,128,229,330,624.28/1,216,118.91 - Step 6: Final answer
x = 927,729.45
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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.