Finding the Fourth Proportional to 1,121,624.36, 1,547,797.92 and 612,330.92
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Solution
The fourth proportional to 1,121,624.36, 1,547,797.92 and 612,330.92 is: 844,992.81
Step by Step Solution
- Step 1: Write the proportion equation
1,121,624.36 : 1,547,797.92 = 612,330.92 : x - Step 2: Convert to fraction form
1,121,624.36/1,547,797.92 = 612,330.92/x - Step 3: Cross multiply
1,121,624.36x = 1,547,797.92 × 612,330.92 - Step 4: Simplify right side
1,121,624.36x = 947,764,524,327.69 - Step 5: Solve for x
x = 947,764,524,327.69/1,121,624.36 - Step 6: Final answer
x = 844,992.81
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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.